Materials engineering

1. Electrochemical synthesis of transition metal chalcogenides.

Supervisor: dr hab. inż. Remigiusz Kowalik
Auxiliary supervisor:
dr inż. Michał Stępień

Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals, Faculty of Non-Ferrous Metals

Abstract: The scientific goal of the proposed doctoral dissertation is the electrochemical synthesis of transition metal chalcogenides. The examination will include optimization of the electrochemical process parameters for the coating deposition of selected transition metals with sulfur, selenium or tellurium. The main criterion for the selection of co-deposited elements will be the prospective possibility of using the synthesized compounds as catalysts in the process of hydrogen production by electrolysis.

Optimization of the electrodeposition process will require selecting the appropriate electrolyte (composition, concentration of ingredients, pH, selection of the buffer, selection of complexing agents, etc.), and then determining the range of electrolysis process parameters in which it will be possible to simultaneously co-deposit the components of selected alloys with a strictly defined composition. An important stage of the proposed doctoral thesis will be to determine the mechanism and kinetics of deposition of individual elements as well as their interaction during co-deposition of them from an single electrolyte. The obtained materials will undergo electrochemical tests in order to determine their catalytic and corrosion properties. Additionally, the elemental and phase composition of the coatings will be tested as well as their structure and morphology of the surface depending on applied parameters of electrodeposition process that will be subsequently combined with their electrocatalytic properties in the process of hydrogen evolution and corrosion properties.

Research facilities: The laboratories at the Faculty of Non-Ferrous Metals are equipped with all required equipment inessential for realization of the proposed thesis:

    • potenciostats/galvanostats, bipotentiostats,

    • electrochemical quartz microbalance combined with flow electrochemical cell

    • rotating disc and rotating-ring disc electrode

    • UV-VIS-NIR spectrophotometers,

    • UV-VIS spectrofluorimeter,

    • ellipsometer,

    • optical and confocal microscopes,

    • atomic forces microscope,

    • scanning tunnel microscope,

    • x-ray diffractometer,

    • x-ray spectrofluorimeter (WDS),

    • scanning electron microscope with EDS, WDS and EBSD detectors,

    • transmission electron microscope with EDS detector,

    • FT-IR spectrometer

    • ultra-fast UV-VIS spectrometer (up to 1 kilo spectras/s)

    • high speed camera (up to 1 kilo fps)

    • UV-Vis spectrophotometer for stopped flow techniques

    • high pressure reactor PARR (up to 200 bar)

    • micro flow reactors (up to 20 bar)

    • DLS spectrometer equipped with zeta potential option

    • Microwave Plasma-Atomic Emission Spectrometer

    • atomic absorption spectrometer

Number of places: 2

 

2. Composite biomaterials based on calcium phosphates and bacterial polymers - polyhydroxyalkanoates

Supervisor: dr hab. inż. Aneta Zima

Auxiliary supervisor: dr inż. Joanna Czechowska

Department of Ceramics and Refractory Materials, Faculty of Materials Science and Ceramics

Abstract:  The project concerns the production of composite biomaterials based on calcium phosphates and bacterial polyesters - polyhydroxyalkanates with potential application in cartilage tissue engineering (polymer blends with ceramic powder) and bone tissue engineering (polymer coated ceramic foams). Apart from fulfilling the role of scaffold, the manufactured composite materials will also serve as a drug carrier with controlled release time. Bioceramics, which is widely used as a biomaterial, will enhance the biocompatibility and bioactivity of composites. Ceramics powder in polymer blends will strengthen the biomaterial. The same powders will be the raw material for the production of ceramic "foams" obtained by polyurethane sponge method. At the stage of foam preparation, rheological parameters of ceramic slurry used to impregnation of polyurethane matrices will be determined. After sintering, the samples will undergo a number of tests (XRD, FTIR, Raman, mercury porosimetry (MIP), mechanical strength, microstructure (SEM)).

Ceramic sinters with favourable properties will be used in the next stage to obtain ceramic-polymer composites. Foams will be covered with blends. Elastomer will strengthen brittle ceramics, and monomers/metabolites released during its degradation will serve as nutritional substances for cells. In order to confirm the above objectives the physicochemical analysis of the obtained composites will be carried out.

The proposed project will be implemented within the framework of the TECHMATSTRATEG grant entitled "Vegetable oil biorefining technology for producing advanced composite materials".

Number of places: 1

 

3. Structural stability and properties of ausferritic cast iron (ADI)

 

Supervisor: dr hab. inż. Marcin Górny, prof. AGH

Department of Cast Alloys and Composites Engineering, Faculty of Foundry Engineering

Abstract: The PhD thesis concerns modern cast components made of spheroidal cast iron with ausferritic metal matrix (ADI, Austempered Ductile Iron). The title of the thesis is closely related to the creation of the structure, its stability and changes in mechanical properties, accompanying the impact of the temperature, which can significantly affect the properties of the castings. The perfect combination of the casting properties of spheroidal graphite cast iron with ausferritic metallic matrix has opened new possibilities for high quality cast iron, replacing steel castings and forgings as well as aluminum alloy castings, in many engineering applications, with significant financial benefits. An important aspect of the proposed thesis is the high attractiveness of ADI. It is a modern casting alloy, which can be treated as an excellent, engineering material. Literature data provide limited information related to the structural stability and properties of castings from spheroidal graphite cast iron ADI exposed to elevated temperatures. Due to the fact that the second stage of heat treatment procedure covers the range 250-450 oC, it is important from the point of view of exploitation of such castings to recognize the structural stability and mechanical properties of castings from ADI subjected to elevated temperatures, close to those used during the austempering process. Stability of the structure can be important in the design of cast components, especially in automotive production, where the stability of the structure and properties are crucial in the selection of a given material. The main research problem presented in the thesis is the stability of the structure and properties of ausferritic cast iron (grades with lower ausferrite and with upper ausferrite) with spheroidal graphite. The second research problem is the assessment of the impact of critical parameters of structural stability and properties (chemical composition, temperature and time of ausferritization, initial microstructure of ductile iron).

Research facilities: The Faculty of Foundry Engineering at AGH has a research base enabling the implementation of the proposed topic. In particular, the Faculty of Foundry Engineering provides access to an experimental foundry and a laboratory enabling heat treatment. In addition, access to dilatometer, DSC thermal analysis, optical and scanning microscopy as well as preparation of samples for testing are provided.

Number of places: 1

 

4. Interaction of graphite particles with the crystallization front in high-nickel cast iron

Supervisor: dr hab. inż. Marcin Górny, prof. AGH
Department of Cast Alloys and Composites Engineering, Faculty of Foundry Engineering

Summary of research problem: The PhD thesis concerns thin-walled castings, i.e. those whose wall thickness is ≤ 5 mm. The thesis is closely connected with the formation of the structure which determines the final properties of castings. The excellent property combinations of thin wall ductile iron castings, including alloyed thin-wall ductile iron (e.g., austenitic ductile iron), have opened new possibilities, especially those engineering applications with considerable cost benefits. An important aspect of the proposed thesis is the attractiveness of austenitic ductile cast iron. First of all, it is a foundry alloy, which is an excellent material for basic research on the formation of its primary structure due to a lack of eutectoid transformation. The second important aspect is, such high-quality spheroidal cast iron (with precipitates of spheroidal graphite) is an alloy that exhibits the highest growth rate in highly-developed countries including Poland. The introduction of nickel into low temperature cast iron is intended to obtain an austenitic matrix only. Such spheroidal cast iron can be used in extremely negative temperature ranges, i.e. up to -200 oC. The main research problem presented in this thesis for solving is the description of structure formation (formation of primary grains and formation of globular eutectics) in thin-walled castings with an austenitic matrix. The second research problem is the analysis of the influence of these relevant factors on the formation of this structure resulting in high speed cooling conditions with a wall thickness of 3-5 mm.

Research facilities: The Faculty of Foundry Engineering at AGH has a research base enabling the implementation of the proposed topic. In particular, the Faculty of Foundry Engineering provides access to an experimental foundry and a laboratory enabling heat treatment. In addition, access to dilatometer, classical thermal analysis and DSC, optical and scanning electron microscopy as well as preparation of test specimens is provided. In addition, doctoral students have access to simulation programs such as Magma, Procast and others.

Number of places: 1

 

5. The source and level of the radionuclides in sediment taken from the mountainous lakes located in protected area.

Supervisor: dr hab. inż. Remigiusz Kowalik

Auxiliary supervisor: dr inż. Michał Stępień
Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals, Faculty of Non-Ferrous Metals

Summary of research problem:  The aim of the proposed PhD thesis is to elaborate technology for the recovery of rare earth metals from powder produced from grinding out used fluorescent lamps and energy-saving lamps. The most valuable elements that are included in this type of waste are yttrium and europium. Thus, research will focus primarily on selecting the appropriate sequence of metallurgical methods enabling the recovery of the above-mentioned elements and obtaining them in the form of a commercial product that satisfies the criteria, and thus enabling their re-use. The choice of the method of metal recovery will depend primarily on their content in the waste material and the accompanying other substances. Taking into account the chemical properties of rare earth metals, the key techniques used to recover yttrium and europium will be classical hydrometallurgical methods, such as leaching, extraction and membrane techniques. Research activities will be performed both on the optimization of the recovery of yttrium and europium, in order to achieve the highest possible efficiency and selectivity, as well as on the understanding of the mechanism and kinetics of processes taking place during recovery using selected methods.

Research facilities: The laboratories at the Faculty of Non-Ferrous Metals are equipped with all required equipment inessential for realization of the proposed thesis:

  • potenciostats/galvanostats, bipotentiostats,

  • electrochemical quartz microbalance combined with flow electrochemical cell

  • rotating disc and rotating-ring disc electrode

  • UV-VIS-NIR spectrophotometers,

  • UV-VIS spectrofluorimeter,

  • ellipsometer,

  • optical and confocal microscopes,

  • atomic forces microscope,

  • scanning tunnel microscope,

  • x-ray diffractometer,

  • x-ray spectrofluorimeter (WDS),

  • scanning electron microscope with EDS, WDS and EBSD detectors,

  • transmission electron microscope with EDS detector,

  • FT-IR spectrometer

  • ultra-fast UV-VIS spectrometer (up to 1 kilo spectras/s)

  • high speed camera (up to 1 kilo fps)

  • UV-Vis spectrophotometer for stopped flow techniques

  • high pressure reactor PARR (up to 200 bar)

  • micro flow reactors (up to 20 bar)

  • DLS spectrometer equipped with zeta potential option

  • Microwave Plasma-Atomic Emission Spectrometer

  • atomic absorption spectrometer

Number of places: 1

 

6. Microstructure analysis of metallic materials using advanced algorithms in EBSD patterns recognition.

Supervisor: prof. dr hab. inż. Konrad Szaciłowski

Auxiliary supervisor: dr inż. Tomasz Tokarski

Faculty of Materials Science and Ceramics

Abstract: The research will be focused on the development of the new, SEM-EBSD based microstructure analysis technique. Current EBSD are dealing on standard commercial software which has limited analytical capabilities. Particularly, the angular resolution of the analyzed orientation is limited to about 1 degree. The statical analysis of the dislocation structure evolution in crystalline materials requires much better angular resolution making proposed research important goal to achieve. Planned theoretical and experimental work will utilize a new analytical approach for the Kikuchi diffraction image analysis. New methodology relays on combined approach exploiting Radon transformation and pattern matching algorithms. As a result, significant improvement in angular resolution should be achieved with preserved, similar to standard EBSD systems, calculation speed. A proposed analytical approach will be applied for the analysis of the dislocation structure evolution during deformation of various metallic single crystals.

Research facilities: Academic Centre for Materials and Nanotechnology is fully equipped in the instruments and analytical know-how necessary for the conducting proposed research. The main topic is connected to the metallic materials and it requires access to the laboratories allowing synthesis of the new materials, mechanical testing of materials, sample preparation and scanning microscopy analysis. All necessary equipment is available in the ACMiN laboratories. The second part of the research will be performed using standard desktop computers, however, in case of especially demanding numerical task, it is possible to utilize computing powers of the TERA-ACMIN supercomputer. The proposed research is closely connected to the current activities of the ACMiN research group „Materials for Special Applications”. New analytical SEM-EBSD approach will be employed in the current and further projects focused on the microstructure evolution of poli- and single-crystalline materials.

Number of places: 1

 

7. Elaboration of the quantitative model of the microstructure of additively manufactured Inconel 625 superalloy.

Supervisor: dr hab. inż. Beata Dubiel, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The aim of the proposed research topic is the development of a two-dimensional model of phase distribution in the Inconel 625 nickel superalloy, additively manufactured in the Laser Beam Powder Bed Fusion (PBF-L) process. The development of the model will allow to reduce the number of time-consuming and cost-intensive experiments necessary to ensure the required microstructure and properties of the new 3D-printed parts manufactured from the Inconel 625. Phase analysis of precipitates by electron diffraction methods in combination with microstructure imaging and mapping of chemical composition will allow to determine experimental phase distribution maps for selected temperature and time conditions. The developed phase distribution model will be compatible with the results of local and global phase analysis and will enable the creation of a digital representation of the two-dimensional phase distribution in the analysed area.

Research facilities: The proposed research topic will be partially realized within the NCN OPUS 14 project entitled "Evolution of the microstructure during high-temperature annealing and creeping" agreement No. 2017/27 / B / ST8 / 02244 in the research task "Development of a microstructure model that is quantitatively consistent with the phase balance". The scholarship contest within this project will be announced for the period April 2020-March 2021. To prepare an experimental phase distribution map, SEM and TEM microscopes available in the Faculty of Metals Engineering and Industrial Computer Science will be used. The equilibrium phases occurring in the Inconel 625 superalloy in the selected temperature range will be selected on the basis of thermodynamic calculations using the FactSage software available in the Faculty. For the purposes of developing the model, dedicated computer software will be elaborated using computer hardware (personal computers, computing servers) and programming environments available at the Faculty.

Number of places: 1

 

8. Characterization of the dislocation substructure evolution during creep deformation of the additively manufactured Inconel 625 superalloy.

Supervisor: dr hab. inż. Beata Dubiel, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The aim of the proposed research topic is characterization of changes in the dislocation substructure at different stages of high temperature creep of the Inconel 625 nickel-based superalloy, additively manufactured in the Directed Energy Deposition with Laser Beam (DED-L) process. TEM studies will allow the qualitative and quantitative characteristics of the dislocation substructure (estimation of dislocation density, analysis of dislocation networks, determination of dislocation Burgers' vectors) and observation of interaction of dislocations with precipitates and grain boundaries. Characterization of the dislocations substructure will led to the determination of the creep mechanisms of the DED-L manufactured Inconel 625. As a consequence, it will allow to understand the differences in the creep resistance of parts 3D-printed and produced by conventional metallurgical methods.

Research facilities: The proposed research topic will be partially realized within the NCN OPUS 14 project entitled "Evolution of the microstructure during high-temperature annealing and creeping" agreement No. 2017/27/B/ST8/02244. Creep tested samples will be used to study the dislocation substructure using the Jeol JEM-2010 ARP microscope at the Faculty of Metals Engineering and Industrial Computer Science, equipped with the specialized double-tilt holders for quantitative dislocation analysis in diffraction contrast.

Number of places: 1

 

9. Heat transfer during contact of tool and material in high-temperature metallurgical processes.

Supervisor: dr hab. inż. Marcin Rywotycki

Auxiliary supervisor: dr inż. Agnieszka Cebo - Rudnicka

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The heat transfer effect during contact of two solid bodies occurs in numerous metallurgical processes, such as e.g. continuous casting of steel, or metal forming processes. The temperature fields of solids taking part in heat transfer are described by the Fourier equation. Boundary conditions of heat transfer must be determined to get an accurate solution to the heat conduction equation. Heat flux between the tool and the object processed depends mainly on temperature, pressure, presence of lubricating agents and additional films as e.g. scale. The methodology for determining the heat flux will be used in the work and the heat transfer coefficient between two solid bodies staying in contact. It consists of two stages – the experiment and the numerical computation. The former involves measurements of temperature changes at specific points of the two samples in contact. The latter uses the inverse solution and the finite element method to calculate the heat flux at the contact face. The final result of the PhD student's thesis will be the development of a model describing heat transfer during contact as a function of temperature, pressure and thickness of the scale layer.

Research facilities: In the current research work, the methodology for determining the heat flux and the heat transfer coefficient between two solid bodies in contact has been developed. Research facilities of the Faculty of Metal Engineering and Computer Science, planned for use in research work are: original software using the inverse method to determine the flux and heat transfer coefficient, Ansys Fluent numeric package, Zwick strength machine, electron microscopes.

Number of places: 1

 

10. Study of the effect of phase composition on susceptibility to metal forming of non-equilibrium high-entropy alloys.

Supervisor: dr hab. inż. Krzysztof Muszka

Second supervisor: dr hab. inż. Piotr Bała

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Continuous progress in technology requires development of new materials that will offer new, much more demanding properties. The high-entropy alloys are now a very attractive group of new materials, which due to the high configuration entropy of the microstructure, are characterized by unique properties, e.g. very good resistance to radiation and corrosion. The use of these alloys in the energy industry (nuclear energy, hydrogen storage), however, requires the development of new technologies for the manufacture of finished products from these materials, including metal forming which, due to the complex phase structure of alloys, is still a major challenge - especially in multicomponent non-equilibrium high-entropy alloys. At the same time, the attractiveness of this group of materials, resulting from the presence of many phase components, allows controlling the complex effects of microstructure development (similarly as in the currently produced TRIP and TWIP steels) and, as a result, their plastic deformation. The aim of the work will be the development of new alloys and study of their susceptibility to plastic deformation during hot, warm and cold metal forming processes as well as study of the mechanical and technological properties of the developed products. The combined approach of multi-scale numerical modeling (e.g. thermodynamic simulations and quantum chemistry - ab initio - simulations) and physical modeling will be used, which will allow determination of the relationships between phase stability and the susceptibility to plastic deformation. The research will serve to understand the relationship between chemical composition, structure and deformation and strengthening mechanisms of strengthening in selected alloys..

Research facilities: The work will be carried out at the Department of Metal Forming at the Faculty of Metal Engineering and Industrial Computer Science, AGH. The Faculty has all research facilities necessary to carry out the work. The microstructural analysis will be carried out using a scanning electron microscope equipped with EDS and EBSD dectectors. The Faculty also has the necessary equipment for rheological and metal forming as well as computer software for thermodynamic simulations (ThermoCalc, JmatPro, FactSage). Through the computational grant, access to the PL Grid infrastructure will also be enabled, which will allow the use of ab initio (quantum chemistry) modeling packages.

Number of places: 1

 

11. The influence of alloying elements on the formation of eutectoid in iron-based hypo-eutectoid alloys.

Supervisor: dr hab. inż. Janusz Krawczyk, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The classical description of the eutectoid transformation in iron alloys indicates its formation on peritectic phase boundaries. In the case of hypo-eutectoid alloys, the moving γ → α interface plays important role in this process. Variable solubility of carbon in both phases results in nucleation of carbides at the interface and their ingrowing into the area of ​​the previously formed α phase. This process depends on the diffusion of carbon and probably the diffusion of substitution elements. The first stage of the formation of the eutectoid mixture associated with tertiary carbide precipitation should depend on nucleation and diffusion processes. The influence of substitute carbide and non-carbide forming elements should have a significant impact on such a process. A dynamic over-cooling also plays important role in this case. Knowledge of these processes is of scientific as well as of practical significance in relation to the microstructure formation and properties of structural iron alloys. The research will include the design of model alloys based on thermodynamic analysis, melting of such alloys and their homogenisation, determination of critical temperatures, designing the cooling process in α-phase eutectoid transformation region, dilatometric and microstructural (including quantitative metallography) analysis, alloying elements distribution analysis, EBSD analysis and the possible use of Mössbauer spectroscopy.

Research facilities: Faculty of Metals Engineering and Industrial Computer Science has the equipment to carry out such investigations. There are preliminary studies indicating the feasibility of the proposed research topic. The subject of the research creates the possibility of obtaining financial support from scientific and application grants.

Number of places: 1

 

12. The influence of deformation conditions on recovery and recrystallization processes in β titanium alloys.

Supervisor: dr hab. inż. Janusz Krawczyk, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract:Titanium alloys are characterized by lower thermal conductivity and a greater exothermic effect in relation to iron alloys. In the case of near β alloys, it is possible to introduce a second phase through aging treatments. This can shift both static and dynamic recrystallization and recovery processes to a new level, and can give the possibility of studying metadynamic recrystallization. The investigations will be aimed at the development of the microstructure under dynamic and quasi-static deformation conditions. The research will be focused on the influence of deformation heterogeneity on the recovery and recrystallization processes, and the effects of earlier recovery on the kinetics of the recrystallization process. This is important in the interpretation of the so-called dissipation energy during hot, warm and cold deformation. The research will include a qualitative and quantitative analysis of the abovementioned phenomena. The deformation conditions will initially be designed and then metallographic analysis, texture investigations (EBSD), and mechanical properties tests will be carried out after their completion.

Research facilities: Faculty of Metals Engineering and Industrial Computer Science has the equipment to carry out such investigations. There are preliminary studies indicating the feasibility of the proposed research topic.

Number of places: 1

 

13. Analysis of fluid flow through the porous mats based on electrospun polymer fibers for biomedical applications.

Supervisor: dr hab. inż. Urszula Stachewicz

Faculty of Metals Engineering and Industrial Computer Science

Abstract:PhD candidate will have the opportunity to learn the electrospinning to produce polymer fibers’ mats. These mats will be tested in terms of mechanical properties, porosity and wetting. The experimental results related to wettability and fluid flow through the porous media will be verified theoretically. A theoretical model will be created based on the already known laws of physics in order to develop a controlled released mechanism of fluids from porous mats. The candidate should have the basic understanding in the area of fluid mechanics and hands-on experience in COMSOL, MATLAB for theoretical modeling.

Research facilities: PhD is part of the First Team project. Information available at: nano4skin.agh.edu.pl

Number of places: 1

 

14. Analysis of cells responses to the surface and bulk properties of electrospun fibers for tissue engineering applications.

Supervisor: dr hab. inż. Urszula Stachewicz

Faculty of Metals Engineering and Industrial Computer Science

Abstract: PhD candidate will have the opportunity to learn the electrospinning to produce polymer fibers’ mats. The produced electrospun fibers will be analyzed in terms of their biocompatibility, surface and bulk properties using advanced microscopy techniques. The aim of the study is to verify the cell responses to the changes of polymer fibers properties controlled via electrospinning. The requirements from the PhD candidate are: basic knowledge of the electrospinning process and hands on experience in cell culture study, in vitro.

Research facilities: In the Department we have the electrospinning equipment to produce polymer fibers and special laboratory to perform the cell culture study. Additionally, we will use the microscopy facilities including SEM and confocal microscopy in this research study.

Number of places: 1

 

15. Development of electrophoretic co-deposition of bioactive ceramics with biodegradable polymers to produce composite coatings for biomedical applications.

Supervisor: dr hab. inż. Tomasz Moskalewicz, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Titanium and its alloys are implant materials widely used in medical applications. Despite numerous beneficial properties, these materials exhibit poor osteoconductive properties, which are essential to prevent implant loosening and achieve long-term stability. The proposed PhD thesis will be aimed at investigating the suspension stability, EPD kinetics and mechanisms of the electrophoretic co-deposition of organic and inorganic particles to obtain multicomponent bioactive ceramics/biodegradable polymer coatings, which will enhance the bioactivity of titanium biomaterials. Nanocrystalline hydroxyapatite and sol-gel glass will be used as bioactive coating components, while zein or sodium alginate will be used as a coating matrix. An important part of the investigation will be to elaborate the chemical composition of suspensions and EPD parameters to ensure high coating homogeneity and tailored microstructure. Systematic studies on the effect of the suspension pH on the zeta potential of particles, mechanisms and kinetics of particle co-deposition will be carried out. The proposed research will enable determination of the influence of deposition parameters on the coating microstructure, adhesion to the substrate, micro-mechanical properties, as well as bioactivity and resistance to electrochemical corrosion.

Research facilities: The Faculty of Metals Engineering and Industrial Computer Science is equipped with specialized facilities for the electrophoretic deposition of coatings, investigation of EPD kinetics and mechanisms, characterization of the microstructure and surface topography of the coatings, as well as investigation of electrochemical corrosion resistance and bioactivity. The research planned in the PhD thesis is included in the proposal submitted to the National Science Centre, BEETHOVEN Classic 3 competition.

Number of places: 1

 

16. Functionalization of titanium biomaterial surfaces by electrophoretic deposition of nanocomposite polyetheretherketone-based coatings and their thermal sulfonation.

Supervisor: dr hab. inż. Tomasz Moskalewicz, prof. AGH

Auxiliary supervisor: dr inż. Łukasz Cieniek

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Titanium and its alloys are the most widely used and generally accepted implant materials for orthopedic and dental implants. However, they are bioinert and cannot bond directly to the surrounding living bone when inserted into the human body. Therefore, bioactive coatings are often fabricated on their surfaces. As part of the doctoral dissertation, systematic studies on the electrophoretic deposition of composite polyetheretherketone-based coatings containing bioactive hydroxyapatite nanoparticles and their subsequent heat treatment will be conducted. In addition, thermal sulfonation of PEEK in the presence of sulfides will be performed to improve its biological properties. To obtain homogeneous coatings, studies on EPD, including investigations of suspension stability, kinetics and mechanisms, will be conducted. Within the scope of the thesis, studies on the coating microstructure, surface topography, micro-mechanical properties and scratch resistance will be performed. The influence of applied treatment of surface modification on the electrochemical corrosion resistance and bioactivity will be evaluated.

Research facilities: The Faculty of Metals Engineering and Industrial Computer Science is equipped with specialized facilities for the electrophoretic deposition of coatings, investigation of EPD kinetics and mechanisms, characterization of the microstructure and surface topography of the coatings as well as investigation of electrochemical corrosion resistance and bioactivity. The research planned in the PhD thesis is included in the proposal submitted to the National Science Centre, OPUS 17 competition.

Number of places: 1

 

17. Ni-Cr-Mo-W laser clad coatings exposed to high temperature and harmful corrosive environment.

Supervisor: dr hab. inż. Agnieszka Radziszewska

Auxiliary supervisor: dr Axel Kranzmann

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Within the PhD thesis the influence of aging in corrosive harmful environments on nucleation of the cracking in oxide layers, microstructure, and mechanical properties of Ni-Cr-Mo-W laser clad coatings will be investigated. The main objective of the project is to give an insight into fundamental understanding of the simultaneously influence of fatigue interaction behaviors and aggressive atmospheres (containing i.e. sulfur, chlorine, oxygen) at high-temperature and at varied exposure time on the oxide layer and coatings cracking. As a results of this understanding a model describing the correlation between damage mechanisms of fatigue and oxidation processes on obtained after corrosion oxide layers and Ni-based coatings will be developed. In order to realize objectives we plan to use nickel-based coatings (Ni-Cr-Mo-W alloys), deposited on steels using laser cladding technique. The laser cladding process will be carried out using CO2 laser. The coatings will be exposed to an oxidation-assisted fatigue process. After fatigue-corrosion (FC) processes optical microscopy, scanning electron microscopy, focused ion beam (FIB), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy, electron probe micro analyzer EPMA, XRD, secondary ion mass spectroscopy will be employed. Also experiments of micro- and nanohardness of coatings will be performed in order to determine the changes in their properties and the influence on the adhesion of oxides layers to their surface.The proposed doctoral research is of high importance for the development of the scientific field which is materials engineering. The research will contribute to the criterion of the knowledge about the simultaneous impact of the harmful environment and aging processes on the phenomena occurring on surface of the coatings.

Research facilities: The Faculty of Metals Engineering and Industrial Computer Science of the AGH University of Science and Technology is completely equipped with instruments for the advanced materials characterization. The following equipment will be used for characterization of Ni-Cr-Mo-W coatings before and after processes such as: laser cladding, corrosion aging and fatigue examinations: light microscope Zeiss Axio Imager M1m, scanning electron microscope the FEI Nova NanoSEM 450 (SEM). The instrument is equipped with the following analytical facilities: Energy Dispersive and Wavelength Dispersive X-ray Spectrometers (EDS and WDS), Electron Backscatter Diffraction (EBSD) system. This microscope allows operating in three modes: Low Vacuum, High-vacuum and STEM. The Faculty of Metals Engineering and Industrial Computer Science AGH-UST has scanning electron microscope HITACHI S-3500 which is equipped with the EDS NORAN 986B-ISPS and WDS IBEX systems and will be used also for research of coatings. Transmission electron microscopes: JEM200CX(JEOL). JEM-2010ARP(JEOL), Tecnai G2 20 TWIN (FEI) will be used for the research. X-Ray measurements will be applied to characterize the phase structure of the specimen. Micro-and nanohardness testers will be used for hardness and Young modulus examinations. Laser cladding process will be carried out at Kielce University of Technology. Corrosion tests in Bundesanstalt für Materialforschung und –prüfung (BAM), Berlin, Germany.

Number of places: 1

 

18. Application of fly ash from coal combustion as modifiers in the production of plastics.

Supervisor: dr hab. inż. Beata Hadała

Auxiliary supervisor: dr inż. Monika Kuźnia

Faculty of Metals Engineering and Industrial Computer Science

Abstract: As part of the research, selected plastics (including polyurethane foam) will be produced with the addition of fly ash from coal combustion in a fluidized bed boiler and in a conventional boiler. Fly ash will be obtained from Polish power plants. The produced plastics with the addition of modifier (fly ash) will be analyzed for the study of, among others, flammability, thermal conductivity, mechanical strength or changes in the cell structure. Many of the current research on the use of fly ash and industrial applications includes the production of building materials. Practically no solutions exist in the industry regarding the possibility of using fluidized fly ash in the production of plastics. Fluidized bed combustion fly ash is difficult to manage due to its chemical composition. It is expected that as a result of the research, the exact scope of the fly ash addition to a selected group of plastics will be determined, improving the properties of the obtained materials. Additionally, it will allow to reduce the amount of base components used for the production of plastics and the use of waste fly ash (in accordance with the principles of sustainable development). As part of the work being carried out, the laboratory set for the thermal conductivity and flammability analysis of the produced materials will be developed.

Research facilities: Laboratory facilities within the research work are mainly located in the Faculty of Metals Engineering and Industrial Computer Science, Department of Heat Engineering and Environment Protection AGH. In particular, there are thermal conductivity equipment set, a laboratory set for testing flammability, a laboratory set for producing polyurethane foam, LECO CHNS 628 analyzer, chromatograph, exhaust gas analyzers, dryers, muffle furnaces. Additionally, as part of the PhD the laboratory set will be expanded to study the flammability of the produced materials.

Number of places: 1

 

19. A virtual model of pulsed laser deposition system taking into account collecting reflection high energy electron diffraction patterns.

Supervisor: dr hab. inż. Zbigniew Mitura

Faculty of Metals Engineering and Industrial Computer Science

Abstract: A Ph.D. student will be carrying out research work towards the development of the complete computer model of obtaining thin layers with the help of lasers, namely for the method of pulsed laser deposition (PLD). It is assumed that the final model should take into account the heating of evaporated material, the formation of plasma and the deposition of layers on a selected substrate. The model should also allow one to analyze of reflection high energy electron diffraction patterns collected in situ both for the substrate and deposited nanolayers. Such a task is rather extensive, thus the Ph.D. student will be carrying out research work only for specific problems selected by him-/herself. It is also assumed that the prospective student will be spending 50% of his/her time devoted to scientific investigations on computer modelling (using software already available and/or using programs personally developed). The further 50% of the time will be devoted to experimental work. Experiments will be conducted at the Faculty of Metals Engineering and Industrial Computer Science employing a PLD vacuum system (in collaboration with Dr. Agnieszka Kopia and Dr. Sławomir Kąc). Further, some experiments will be conducted in the Academic Centre for Materials and Nanotechnology with the attention paid to observations of reflection high energy electron diffraction (RHEED) patterns (in collaboration with Prof. Marek Przybylski). A candidate for the doctoral student should be a holder of a master degree earned in one of the following fields of study (or in similar fields): applied computer science, materials engineering, metallurgy, technical physics.

Research facilities: Computational works of the doctoral student will be carried out at the Department of Applied Computer Science and Modelling. This department possesses, among others, advanced commercial software ADINA for running numerical simulations of heat, fluid flows and a number of physical phenomena which can be observed in macroscale. Further, it is assumed that a Ph.D. student will be using in his/her investigations free software, for example, the code LAMMPS suitable for executing molecular dynamics simulations. Experimental work will be carried out in collaboration with researchers from the Department of Surface Engineering and Materials Characterization (DSEMC) belonging to the same Faculty and with researches from the Academic Centre for Materials and Nanotechnology (ACMN) being the part of the AGH University and Technology. The department aforementioned (DSEMC) possesses a Neocera Pioneer 180 PLD System enabling obtaining thin layers of the high quality. Also a number of tools for layer characterization, for example atomic force microscope( AFM), are available in this department. On the other hand, ACMN is the owner of a particularly advanced apparatus, Neocera Pioneer 240 PLD for running experiments in relative high vacuum and equipped in a setup for collecting online reflection high energy electron diffraction patterns from deposited nanostructures.

Number of places: 1

 

20. High-resolution mechanicalspectroscopy.

Supervisor: dr hab. inż. Leszek Magalas, prof. AGH

Faculty of Metals Engineering and Industrial Computer Science

Abstract: PhD thesis is related to the development and novel applications of high-resolution mechanical spectroscopy (HRMS) in materials science. Two experimental techniques are used: resonant and subresonant low-frequency mechanical spectroscopy. Dissipation of mechanical energy in metallic materials is to be investigated using classical and high-resolution spectroscopic techniques. In both cases, the estimation of experimental parameters, data mining and analysis is carried out in Matlab. The ultimate goal is the optimization of external experimental parameters, and performance of methods/algorithms to estimate dissipation of mechanical energy and elastic modulus in metallic materials. Other classical experimentaltechniques used in materials science are considered as complementary and supplementary techniques.The scientific activity of the laboratory comprises both fundamental and applied research in the field of materials science.

Requirements: MSc in solid state physics, applied informatics and computational physics, computer science, informatics in materials science and/or physics, materials science. Programming in Matlab (and/or C++). Good knowledge of English.

Research facilities: The experimental facilities of the Laboratory of high-resolution mechanical spectroscopy include:

- low-frequency mechanical spectrometer operating in the resonant and subresonant mode in the frequency range from 0.01 Hz to 7 Hz (100-1000 K) and

-the novel turkey system, that is, the high-resolution mechanical spectrometer, HRMS. The design of the advanced HRMS spectrometer is based on the FPGA, 20-bit D/A and 24-bit AD boards,and the recent model of NUC computer.

Isothermal measurements can be carried out under stabilized climatization conditions. The laboratory (two rooms) is well equipped to carry out experimental work and calculations.

Number of places: 2

 

21. Thin films La2Ti2O7/LaCoO3: Sr for solar energy conversion.

Supervisor: dr hab. inż. Agnieszka Kopia prof. AGH

Second supervisor: prof. Sebastien Saitzek

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Global energy consumption is constantly rising and taken into account of the environmental constraints, so-called green energy has become a major issue for any eco-responsible economy. An alternative is the conversion of solar energy to produce energy in electrical form via photovoltaic cells or in chemical form with the dihydrogen production from photo-catalyst (water splitting). Today, the production of hydrogen by photo-catalysis uses oxide-based systems with a large optical gap coupled with an absorber compound allowing photocatalysis under visible excitation. The processes involved in photocatalysis are multiple: i) photon absorption, ii) exciton creation, iii) carrier diffusion and transport, iv) catalytic efficiency and v) mass transfer of reactants at the interface [K. Takanabe, ACS Catalysis, (2017), 7, 8006-8022]. The use of heterojunction n / p makes it possible to better separate the carriers (electrons and holes) and to increase their lifetime in order to improve the photocatalytic effects of the system [K. Afroz et al., Journal of Materials Chemistry A, (2018), 6, 21696]. Regarding the conversion of light energy into electrical energy, various solar cell technologies have been developed in recent decades. For example, there may be mentioned: i) the oldest and most widely commercialized based on amorphous or polycrystalline silicon, ii) semi-conductors such as GaAs, CdTe, CuInS2, CIGS, ..., iii) the dye cells so-called Grätzel cells, iv) hybrid cells based on perovskites of the type CH3NH3PbX3 (X = I, Br, Cl),…. Among all these technologies, a new technology has emerged in recent years, it is solar cells with all oxide heterojunction n/p as p-Cu2O/n-ZnO [C. Tenailleau et al., Mater. Renew. Sustain. Energy, (2017), 6, 18 ; S. Rühle et al., J. Phys. Chem. Lett. (2012), 3, 3755] whose advantage is the good stability over time of the system and a more affordable production run. Therefore, the study of new heterojunction in the form of thin films can also be of interest for the field of photovoltaics.

Research facilities: The French laboratory has been working for ten years on the Ln2Ti2O7 (Ln=Lanthanide) perovskite with layered-perovskite structures and also has extensive experience in characterization at the nanoscale ferroelectric and piezoelectric materials. The group also includes the tools needed for soft-mineral synthesis (sol-gel) as well as physical thin film deposition techniques such as the pulsed laser ablation technique coupled with RHEED. In terms of equipment, the French laboratory has a Raman micro-spectrometer, an X-ray diffractometer Ultima IV powder, a high-resolution X-ray diffractometer (SmartLab Rigaku) for the analysis of thin films, two Atomic force microscopes (electric modes), a spectroscopic ellipsometer, a scanning electron microscope, a laser granulometer and a photoelectrochemical measuring bench. The Polish laboratory is specialized in perovskite oxide synthesis for gas sensor application. In terms of equipment, it has a pulsed laser ablation deposition system (Nd-YAG laser Continuum Powerlite DLS (Digital Laser Source) with Chamber Neocera), pulsed electron deposition system (PED Neocera PEBS-20), ball mill RETSCH model PM400, a scanning electron microscopy (FEI Nova NanoSEM 450 (STEM) with WDS „IBEX”) transmission electron microscopy Tecnai G2 20 TWIN (FEI) with STEM-HAADF and EDS (TIA/EDAX), XPS PHI Versa Probe II, XRD PanAnalytical Dy 1061, AFM microscop Veeco Dimension® Icon™ SPM and LSR – 3,  firmy Linseiss for electric properties of thin films.

Number of places: 1

 

22. Influence of rolling geometry on microstructure and properties of metal in the deformed state and after recrystallization.

Supervisor: dr hab. inż. Mirosław Wróbel

Second supervisor: prof. dr hab. inż. Krzysztof Wierzbanowski

Faculty of Metals Engineering and Industrial Computer Science

Abstract: A metal strengthening due to gran refinement by the ​​shear stress intensification is a goal of this work. Unconventional rolling will be applied to induce plastic deformation. It will be done in a relatively simple way, so that it can be easily used in mass production. The experiment will be preceded by the computer simulations. Then, the deformed material will be recrystallized. For both deformed and recrystallized material, a comprehensive microstructure and mechanical properties characterization will be performed (optical microscopy, scanning electron microscopy, crystallographic texture and residual stress measurements, hardness measurements, tensile tests, plastic anisotropy characteristics). The student will be trained in the techniques and skills required during the work. The work will be carried out in an interdisciplinary team with important achievements in this field. The ability to work in a group and readiness to travel abroad are welcome.

Research facilities: The laboratory is equipped with all devices necessary to perform the work (i.e., electron microscopes (4), X-ray diffractometers (2), tensile machines (3), hardness testers (3), differential scanning calorimeter (1), heat treatment lab, metallographic lab., rolling mill). The neutron diffraction measurements will be done in Joint Institute for Nuclear Research, Dubna, Russia. AGH-UST has a permanent cooperation with this institute, in which the supervisor of the proposed work is also included.

Number of places: 1

 

23. Crystallization of foundry alloys in the ultrasonic field.

Supervisor: dr hab. inż. Jerzy S. Zych

Auxiliary supervisor: dr inż Łukasz Jamrozowicz

Faculty of Foundry Engineering

Abstract: The topic is part of the problem of research on the modification of the structure of alloys, the aim of which is to increase the mechanical properties. Crystallization of alloys under conditions of forced vibrations leads to fragmentation of the structure, and this is a known phenomenon. However, vibrations with frequencies above 20 kHz (ultrasounds) probably lead to deeper fragmentation, reducing the distance of branches of the second dendrounds (smaller values of SDAS). This thesis requires verification. With a positive test result, it would be possible to influence the crystallization of alloys in small areas in castings, where it would be advisable to increase strength. The introduction of the ultrasonic field into a solidifying alloy would be implemented using special construction waveguides. In the first place tests would be carried out on light metal alloys.

Research facilities: The research would be carried out in the Department, whose structure is a non-destructive testing laboratory equipped with ultrasonic equipment. In the studio, under the guidance of the promoter (J. Zych), a lot of research was conducted on the application of ultrasonic technology for many duties (structure control, property testing, kinetics of the bonding and curing processes of plastics with adhesives, defect detection, etc.). The cathedral also has metallurgical facilities and the possibility of making casts from most foundry alloys. In the cathedral for many years, projects have been implemented, the last of NCBiR (intelligent path) and there is a high probability of obtaining projects in the following years, including the program covering the subject of the doctoral thesis.

Number of places: 1

 

24. Heat treatment of AlSiMg alloys in polymer baths - process optimization for the Index Quality increase (IQ).

Supervisor: dr hab. inż. Jerzy S. Zych

Faculty of Foundry Engineering

Abstract: The topic is part of the problem of research on the modification of the structure of alloys, the aim of which is to increase the mechanical properties. Castings of light alloys are often subjected to thermal improvement: supersaturation and aging. There are still large reserves in the area of selection of heat treatment parameters for selectively increasing the mechanical properties of ALSiMg alloys. An important element of the treatment is cooling (quenching), the speed of which can be controlled by the type of bath (water, polymer, etc.) and its parameters - temperature, intentionality of the forced circulation of the medium. The research will focus on determining the role and intensity of the impact of the quenching bath on the structure and properties of the A356 alloy with microcarratives. The role of supersaturation parameters (T and ) as well as aging parameters in shaping the comprehensive IQ alloy quality index will be analyzed.

Research facilities: The research would be carried out in the Department, which structure is a non-ferrous metal casting workshop. In the Department there are metallurgical facilities and the possibility of making casts from the majority of foundry alloys. In the recent period, a mobile stand for hardening samples in the process of improving the calf has been built. It is equipped with the heating system of the quenching bath as well as the system for forcing the circulation of the cooling medium with controlled intensity. The Department has been carrying out projects for many years, recently with the National Center for Research and Development (intelligent path) and there is a high probability of obtaining projects in the following years, including the program covering the subject of the doctoral dissertation.

Number of places: 1

 

25. Cast iron for ultra low temperature work under dynamic load conditions - research on manufacturing technology in industrial conditions.

Supervisor: dr hab. inż. Jerzy S. Zych

Faculty of Foundry Engineering

Abstract: More and more cast structures working under dynamic load conditions are also working at low temperatures. Wind turbine components built on the seas in the northern part of the globe, near the Arctic Circle, work periodically at a temperature below - 40C. The material for such work are austenitic cast iron, austenitic or ferritic ductile iron with high plasticity and high stripping at the described temperature. The work fits in with the subject of the project implemented NCBIR. It covers the topics of optimization of chemical compositions, melting technoogy and secondary metallurgy technology, including gas refining. The aim is to master the technology of producing nodular iron from the ferrutic group to work at a low temperature (LT), thanks to which it will be possible to produce castings in a repetitive and low risk manner, the material of which will be characterized by high impact strength at an ultra-low temperaturea ebove.

Research facilities: The research would be carried out at the Wylele Odlewnictwa AGH. In Kater, under the supervision of the promoter (J. Zych), a lot of research has been done on the improvement of the quality of high quality types of iron: ductile, vermicular and ADI. The Foundry Department disposes of metallurgical facilities and the possibility of making casts from most foundry alloys. Currently, the MCBiR project is being implemented, as part of which the research can be carried out. The Department has full facilities for measuring and research equipment to carry out the work program.

Number of places: 1

 

26. An application of ultrasonic technology to study the kinetics of the processes of bonding of ceramic masses, molding sands, concretes, building adhesives, gypsums, etc.

Supervisor: dr hab. inż. Jerzy S. Zych

Faculty of Foundry Engineering

Abstract: The topic is part of the research topic in which the promoter (J. Zych) - the author of a patented method of investigating the kinetics of processes with ultrasonic technique - has specialized for nearly 20 years. Over many processes of binding, curing, cross-linking of materials and materials are very poorly understood, mainly due to the lack of research tools. The new ultrasonic testing method changes this situation. The PhD thesis will cover a segment of broad subject matter, adequately to the interests and preparation of the doctoral student. Foundry Department, the cathedral, whose supervisor is the promoter (J.Zych), has specialized ultrasound equipment, measurement stands, including tests in industrial conditions. The tests may include monitoring of curing processes under ambient temperature conditions or other conditions carried out in a climatic chamber. The research possibilities and the application of their results to industrial conditions are, in the opinion of the promoter, very broad.

Research facilities: The research would be carried out at the AGH Department of Foundry Engineering at the Department of Form Technology, in which the structure is an ultrasound laboratory, equipped with ultrasound equipment and a number of proprietary research stands. In the studio, under the direction of the promoter (J. Zych), a lot of research was conducted on the application of ultrasonic technology for many purposes (structure control, properties testing, kinetics of bonding and curing processes of plastics with adhesives, defect detection, etc.). In the cathedral for many years, projects have been carried out, recently with the National Center for Research and Development (intelligent path) and there is a high probability of obtaining projects in the following years, including the program covering the subject of the doctoral dissertation. Many of the designs developed a method for monitoring processes, mainly bonding molding and core compounds.

Number of places: 1

 

27. Copper-base thermodynamic database of Calphad type.

Supervisor: dr hab. Bogusław Onderka, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: The copper base alloys are widely used in many fields because of their good combination with high thermal and electrical conductivities and high-strength. Multicomponent Cu base alloys with high performance are required in the field of electronic materials, such as substrate and lead frame in the printed board, interconnection and so on. Pb-free micro-soldering alloys have been designed and developed to meet the requirements arising from environmental and health issues concerning the toxicity of Pb. It has been shown that the bonding properties depend on various admixture components of Pb-free solders and Cu base alloys. In order to develop Cu base alloys with high efficiency, a thermodynamic database of Cu base alloys for reliable predictions of liquidus, phase fraction, equilibrium and nonequilibrium solidification behavior (i.e. Scheil-Gulliver model), etc. in multi-component systems is required because it is difficult to obtain these information from available references. Additionally, thermodynamic databases of Cu-base alloys should be developed to optimize the metallurgical processes of technologies of production of copper and its alloys. The objective of the present thesis is to develop the thermodynamic database of the Cu base alloy systems including binary system and ternary systems by the CALPHAD method. To obtain the thesis aim it will be necessary to carry out the simultaneous assessment of several binary and ternary systems (for ex. Cu-S, As-Cu, Cu-Pb etc.) taking into consideration the experimental data occurred in the subject literature. Such thermodynamic database together with diffusion and mobility data enable the design of new functional alloys and the optimization of process parameters.

Research facilities: The commercial thermodynamic software: Pandat (CompuTherm LLC - USA, ThermoCalc - TCAB, Sweden, HSC – Outotec, Finland, or FactSage - GTT Technologies, Germany/Canada) is available at Department of Non-Ferrous Metals. Such software enable the thermodynamic assessment of different phase systems on the basis of experimental data. The necessary experimental data of thermodynamic properties and topology of equilibria in the phase system should be obtained from literature survey: publications and conference proceedings. Basing on the assessed model parameters, the thermodynamic packages also enable the calculations of phase diagrams and other properties. Additionally, the estimation of precipitation sequence in multicomponent alloys by lever rule and no-equilibrium by Scheil-Gulliver model are possible. The CALPHAD-coupled kinetic modelling approach, especially the Frequency Distribution Function (FDF) methods represented by Numerical Kampmann-Wagner model – KWN) enable simulation of the simultaneously occurring phenomena of nucleation, growth, and coarsening and Fast-Acting method (based on Langer and Schwartz theory) allow simulation of particle number density and mean size of the precipitated phase (in limiting range to 3 components). A special valuable feature of this software is the possibility of taking into consideration the thermodynamic calculation with the gas phase presence.

Number of places: 1

 

28. The impact of used moulding and core sands on the harmfulness of the working environment in the foundry.

Supervisor: dr hab. inż. Katarzyna Major-Gabryś

Auxiliary supervisor: dr inż. Małgorzata Hosadyna-Kondracka

Faculty of Foundry Engineering

Abstract: The trends of modern foundry regarding moulding and core sands and mould technology result from three main conditions. These are: ensuring the appropriate technological properties of the mould and core, high process economy and low harmfulness to the environment. However, in recent years, the dominant factor in the development of moulding and core sands technology is the need to comply with high environmental protection requirements. This is done even at the expense of lowering the technological properties of the moulding sands. In the Moulding Materials Laboratory of the Faculty of Foundry Engineering AGH promoter for many years conducts research related to the use of environmentally friendly moulding and core sands. However, no attempt has been made to assess the toxicity of these compounds in the foundry. Cooperation within the scope of this work between the Faculty of Foundry Engineering and the Foundry Institute will enable such assessment.

Research facilities: The research would be carried out at the Faculty of Foundry Engineering of AGH University of Science and Technology and at the Foundry Research Institute in Krakow. In the Laboratory of Moulding Materials of the Faculty of Foundry Engineering of AGH, the promoter (K. Major-Gabryś) has been conducting research related to the development of moulding and core sands in terms of environmental protection requirements for many years. The Faculty has facilities for research equipment to implement the work program.

Number of places: 1

 

29. Moulding and core sands for production of large-size castings.

Supervisor: dr hab. inż. Katarzyna Major-Gabryś

Auxiliary supervisor: dr inż. Małgorzata Hosadyna-Kondracka

Faculty of Foundry Engineering

Abstract: Recently, some major changes have occurred in the structure of the European foundry industry, such as a rapid development in the production of castings from compacted graphite iron and light alloys at the expense of limiting the production of steel castings. This created a significant gap in the production of heavy steel castings (exceeding the weight of 30 Mg) for the metallurgical, cement and energy industries. The problem is proper moulding technology for such heavy castings, whose solidification and cooling time may take even several days, exposing the moulding material to a long-term thermal and mechanical load. Owing to their technological properties, sands with organic binders (synthetic resins) are the compositions used most often in industrial practice. Their main advantages include high strength, good collapsibility and knocking out properties, as well as easy mechanical reclamation. The main disadvantage of these sands is their harmful effect on the environment, manifesting itself at various stages of the casting process, especially during mould pouring. This is why new solutions are sought for sands based on organic binders to ensure their high technological properties but at the same time less harmfulness for the environment.

Research facilities: The research would be carried out at the Faculty of Foundry Engineering of AGH University of Science and Technology and at the Foundry Research Institute in Krakow. In the Laboratory of Moulding Materials of the Faculty of Foundry Engineering of AGH, the promoter (K. Major-Gabryś) has been conducting research related to the development of moulding and core sands with organic and inorganic binders. The Faculty has facilities for research equipment to implement the work program.

Number of places: 1

 

30. Synthesis of silver nanoparticles with a hexagonal crystallographic structure - new hope.

Supervisor: dr hab inż. Marek Wojnicki

Faculty of Non-Ferrous Metals

Abstract: As part of the doctorate, the conditions under which it is possible to synthesize stable silver nanoparticles with crystallography H2 and H4, i.e. (hexagonal), will be investigated. Such nanoparticles show different properties to particles with crystallography A1. Due to the different packing density of the atoms in the elementary cell, they are expected to show different physical and chemical properties.

Research facilities: The Faculty is equipped with apparatus enabling full synthesis of this type of materials. In addition, most of the equipment necessary to characterize these materials is also available: potenciostats/galvanostats, bipotentiostats, electrochemical quartz microbalance combined with flow electrochemical cell, rotating disc and rotating-ring disc electrode, UV-VIS-NIR spectrophotometers,, UV-VIS spectrofluorimeter,, ellipsometer,, optical and confocal microscopes,, atomic forces microscope,, scanning tunnel microscope,, x-ray diffractometer,, x-ray spectrofluorimeter (WDS),, scanning electron microscope with EDS, WDS and EBSD detectors,, transmission electron microscope with EDS detector,, FT-IR spectrometer, ultra-fast UV-VIS spectrometer (up to 1 kilo spectras/s), high speed camera (up to 1 kilo fps), UV-Vis spectrophotometer for stopped flow techniques, high pressure reactor PARR (up to 200 bar), micro flow reactors (up to 20 bar), DLS spectrometer equipped with zeta potential option, Microwave Plasma-Atomic Emission Spectrometer, atomic absorption spectrometer.

Number of places: 2

 

31. Synthesis of CTAB free anisotropic gold nanoparticles.

Supervisor: dr hab inż. Marek Wojnicki

Faculty of Non-Ferrous Metals

Abstract: As part of the doctorate, the conditions under which synthesis of stable gold nanoparticles in the form of CTAB-free nanowires is possible will be investigated. Currently, the most commonly used method is based on the use of CTAB as a stabilizing factor and forcing a specific direction of growth. Unfortunately, this compound is highly toxic. Therefore, the method is sought that allows the synthesis of nano-sized nanoparticles using other compounds that require shape anisotrpia.

Research facilities: The Faculty is equipped with apparatus enabling full synthesis of this type of materials. In addition, most of the equipment necessary to characterize these materials is also available: potenciostats/galvanostats, bipotentiostats, electrochemical quartz microbalance combined with flow electrochemical cell, rotating disc and rotating-ring disc electrode, UV-VIS-NIR spectrophotometers,, UV-VIS spectrofluorimeter,, ellipsometer,, optical and confocal microscopes,, atomic forces microscope,, scanning tunnel microscope,, x-ray diffractometer,, x-ray spectrofluorimeter (WDS),, scanning electron microscope with EDS, WDS and EBSD detectors,, transmission electron microscope with EDS detector,, FT-IR spectrometer, ultra-fast UV-VIS spectrometer (up to 1 kilo spectras/s), high speed camera (up to 1 kilo fps), UV-Vis spectrophotometer for stopped flow techniques, high pressure reactor PARR (up to 200 bar), micro flow reactors (up to 20 bar), DLS spectrometer equipped with zeta potential option, Microwave Plasma-Atomic Emission Spectrometer, atomic absorption spectrometer.

Number of places: 1

 

32. Synthesis of organometallic nanostructures reacting to such stimuli as: temperature, light, pH, chemical factors.

Supervisor: dr hab inż. Marek Wojnicki

Faculty of Non-Ferrous Metals

Abstract: Intelligent materials including structures based on organometallic compounds are among the most interesting and difficult to produce. Organic molecules are known, also called molecular switches and robots that behave in a certain way under the influence of a specific external stimulus. In response to these specific properties, the possibilities of their use in practice in many branches of science are dramatically changing; optoelectronics, (bio) sensors, (bio) catalysis, etc. The aim of the research will be to design and manufacture a nanostructure based on noble metals and its functionalization with appropriate organic compounds. Then, examine the properties of the synthesized material and determine the operating conditions.

Research facilities: The Department has facilities to conduct research in the field of both the synthesis of nanomaterials in a batch and flow reactor (microreactors), surface modification and analysis. The laboratory is equipped, among others in UV-Vis spectrophotometers, FTIR, particle size analyzer by dynamic light scattering, refractometer, centrifuges, atomic force microscope (AFM), scanning electron microscope (SEM)..

Number of places: 1

 

33. Determination of thermodynamic properties and phase equilibria in the ternary alloys containing gallium.

Supervisor: dr hab. inż. Dominika Jendrzejczyk-Handzlik

Auxiliary supervisor: dr inż. Piotr Handzlik

Faculty of Non-Ferrous Metals

Abstract: The main objective of the project is to provide new information about thermodynamic properties and phase equilibria in the ternary alloys containing gallium. Initially, the thermodynamic properties of liquid solutions will be carried out using calorimetric and electrochemical methods. Next, the transformation temperatures and the course of the liquidus line will be determined by applying thermal analysis. The obtained results will not provide information on what phases arise and when they can co-exist. To determine this, another experiment will be carried out, namely isothermal annealing. Then, structural studies will be carried out using scanning electron microscopy and X-ray diffractometry. The obtained experimental results will be used to create a database, which will be using in optimization of this ternary system by applying the CALPHAD method. The ThermoCalc and Pandat softwares will be used in optimization of this ternary system.

Research facilities: The laboratories at the Faculty of Non-Ferrous Metals are equipped with all required equipment inessential for realization of the proposed thesis: high temperature calorimeter, high temperature furnace which can be applied to measurements by using EMF method, high temperature micro-calorimeter which can be used to do measurements by using DTA/DSC method, precise weights, high-temperature operating furnaces, optical microscope, X-ray diffractometer scanning electron microscope with EDS, WDS and EBSD detectors, transmission electron microscope with EDS detector, ThermoCalc software, Pandat software.

Number of places: 1

 

34. Research on AlZnMg(Cu) alloys susceptibility to extrusion welding.

Supervisor: dr hab. inż. Dariusz Leśniak, prof. AGH

Auxiliary supervisor: dr inż. Justyna Grzyb

Faculty of Non-Ferrous Metals

Abstract: Doctoral thesis concerns the issue of susceptibility to extrusion welding for difficult to form and difficult to weld AlZnMg(Cu) alloys. Weldability testing of AlZnMg(Cu) alloys by using the original device for weldability testing of metals and alloys, FEM numerical calculations by using QForm-Extrusion package and the experimental verification in industrial conditions of Albatros Aluminium corporation in Walcz are planned. The result of doctoral thesis will be the development of complete extrusion technology of hollow shapes from aluminium alloys 7xxx series with Cu, with particular emphasis on producing high-quality seam welds in extruded products.

Research facilities: The research centre of the Faculty of Non-Ferrous Metals AGH in Cracow will be at the disposal of the Ph.D. student, in particular: device for weldability testing of metals and alloys and CAD (SolidWorks) and FEM (Qform-Extrusion and Deform) packages. Moreover, the Ph.D. student will be employed (contract for specific work) under the project TECHMATSTRATEG II pt. ”Extrusion welding of 7xxx series aluminium alloys”, whose manager is Dr hab. inż. Dariusz Leśniak, prof. AGH.

Number of places: 1

 

35. High entropy alloys and their chemical resistance.

Supervisor: prof. dr hab. inż. Elżbieta Godlewska

Auxiliary supervisor: dr inż. Marzena Mitoraj-Królikowska

Faculty of Materials Science and Ceramics

Abstract: The project is focused on chemical properties of new alloys belonging to the family of high entropy materials. These alloys consist of at least five elements - mostly transition metals - which are mixed in approximately equimolar proportions. Many of high entropy alloys are characterized by very good mechanical properties and structural stability at high temperature but their behavior in contact with liquid or gaseous media are not sufficiently well known. The investigations will cover both fundamental and applied issues. On the one hand the research will be directed at identification of kinetics and mechanisms of reactions in the solid-liquid or solid–gas systems and on the other hand at the assessment of potential areas of implementation and evaluation of competitiveness of the new alloys compared with the state-of-the-art materials. It is expected that some of the alloys under study will be suitable for the manufacturing of device components by 3D printing.

Research facilities: Faculty of Materials Science and Ceramics at the AGH University of Science and Technology in Krakow has all devices necessary for the execution of the proposed research project. Laboratory of Functional Coatings (www.fclab.agh.edu.pl) is equipped with modern instruments for the manufacturing and characterization of bulk materials and layers, such as: fully automatic laboratory set-ups for cyclic oxidation, microthermobalance for kinetic studies at constant temperature, laboratory system for classical electrochemical measurements, multichannel stand for electrochemical noise measurements, scanning electrochemical probe for identification of local phenomena. Chemical and phase analyses as well as surface topography (SEM, EDS, XRD, UV-VIS, IR, FT-Raman, AFM) are possible in dedicated laboratories at the Faculty. Other techniques of surface analysis are available at some interfaculty units, such as International Center of Electron Microscopy for Materials Science or Academic Center for Materials and Nanotechnology. The prospective PhD student will be partly involved in the ongoing international project NADEA (Nano-scale duplex high entropy alloys produced by additive manufacturing) M-ERA.NET 2.

Number of places: 1

 

36. Semiconductor layers – synthesis and properties.

Supervisor: prof. dr hab. inż. Elżbieta Godlewska

Auxiliary supervisor: dr inż. Krzysztof Mars

Faculty of Materials Science and Ceramics

Abstract: The objective of this project is to identify interrelations between the structure and properties of semiconducting layers. The results of previous studies allow to expect that the theoretically predicted enhancement of useful properties of bulk materials based on silicides, selenides or tellurides can be attained in layer/thin film systems with hierarchical structures. The semiconductor layers can be deposited by chemical or physical methods or by sequential combination of these two. It is believed that pulse magnetron sputtering is particularly suitable as it offers a possibility of fine-tuning the layer composition and architecture from fully amorphous to fully crystalline. Another scientifically interesting issue is that of structural stability of the obtained layers as a function of temperature. The many-sided characterization planned in this project encompasses temperature dependence of electrical properties (Seebeck coefficient, resistivity), concentration, mobility and type of predominant charge carriers (Hall effect), thermal properties (DTA/TG, DSC) and in parallel the evolution of composition and morphology (SEM, TEM, EDS, XRD, electron diffraction, XPS, and other spectroscopic techniques).

Research facilities: Faculty of Materials Science and Ceramics at the AGH University of Science and Technology in Krakow has all devices necessary for the execution of the proposed research project. Functional Coatings Lab (www.fclab.agh.edu.pl) is equipped with state-of-the-art. instruments for the manufacturing and characterization of bulk materials and layers, such as: laboratory units for the measurements of Seebeck coefficient and electrical conductivity by a four-probe method, reactor for self-propagating high-temperature synthesis (SHS) in a controlled atmosphere, vacuum chamber with two planar magnetrons and a home-made system for temperature control of the substrate during the deposition process, unique multifunctional instrument enabling measurements of thermoelectric properties of layers. Chemical and phase analyses as well as surface topography (SEM, EDS, XRD, UV-VIS, IR, FT-Raman, AFM) are possible in dedicated laboratories at the Faculty. Other techniques of surface analysis are available at some interfaculty units, such as International Center of Electron Microscopy for Materials Science or Academic Center for Materials and Nanotechnology. The prospective PhD student will be partly involved in the ongoing project entitled “Semiconducting layers with controlled microstructure deposited by pulse magnetron sputtering” (NCN OPUS Nr. 2016/23/B/ST8/01248).

Number of places: 2

 

37. Glucose biosensors based on anisotropic transition metal compounds.

Supervisor: prof. dr hab. inż Marta Radecka

Auxiliary supervisor: dr inż. Anna Kusior

Faculty of Materials Science and Ceramics

Abstract: The research issue includes the development of an innovative generation of glucose sensors based on transition metal compounds characterized by a developed surface and anisotropy of properties. The research will be conducted on the influence of the structure and chemical composition on electron transfer and the efficiency in glucose oxidation in terms of signal strength, measurement range as well as the sensitivity of the obtained sensors. It will be important to determine the selectivity, chemical and temporal stability of the constructed systems that would contribute to their competitiveness in relation to currently used enzyme sensors.

Research facilities: The apparatus necessary for the implementation of the project is provided by the Faculty of Materials Science and Ceramics at AGH. Including X-ray diffractogram, scanning electron microscope or high-pressure reactor. It will be possible to use the following research techniques: optical spectroscopy, Raman spectroscopy, TG / DTA analysis and measurement of zeta potential. Voltammetric measurements of electrodes constructed on the basis of the obtained materials will serve to determine the sensor properties.

Number of places: 1

38. Physicochemical properties of (nano-)materials developed for electrodes in electrochemical devices for Energy storage.

Supervisor: dr hab. inż. Paweł Pasierb, prof. AGH

Faculty of Materials Science and Ceramics

Abstract: The development of new materials and technologies for the processing and storage of various forms of energy, in particular in the form of usable electricity, is currently a very important research issue investigated in a number of research centers. Energy storage devices can, among others, include all kinds of electrochemical cells or super- and ultracapacitors. The development of this type of technology is not possible without the development of new materials, including nano-scale materials, composite materials, complex core-shell structures, and an in-depth understanding of the operation mechanisms of this type of new devices. Determination of the correlation between the structure of materials being developed, understood broadly as the chemical and phase composition, crystal structure, microstructure or electron structure, and the electrochemical properties and the operation mechanism of constructed prototype energy storage devices is the key to propose a more comprehensive description of the phenomena that are used to store energy. The subject of the currently proposed research topic is fully in line with the research problems described above.

Research facilities: Faculty of Materials Science and Ceramics AGH has all the equipment necessary to carry out the proposed research task. In particular, the research team led by a scientific supervisor has equipment for the preparation of materials and carrying out all electrical and electrochemical measurements of prototype devices.

Number of places: 1

 

39. Modifications of fibrous carbon scaffolds for activation of regeneration processes of cartilage and bone defects.

Supervisor: dr hab inż. Ewa Stodolak-Zych

Faculty of Materials Science and Ceramics

Abstract: Research on the use of carbon fibers produced by classic wet methods as well as by electrospinning methods, contributed to the repeated interest in this material in terms of its use in regenerative medicine. The proven bone-forming and cartilage-forming potential of low-modulus carbon fibers has been enhanced by the possibility of numerous volume (addition of nanoparticles) or surface (peptides, enzymes, polysaccharides, growth factors) modifications of single fibers, nanofibres or carbon membranes. The aim was to stimulate osteoblast cells/ chondrocyte in processes initiating repair and restoration of damaged tissue structures. Based on these reports as well as on our own research, the project plans to obtain complex carbon fiber systems modified with volume-modified additives facilitating the monitoring of implant behavior in vitro condition (e.g. ferromagnetics). The second type of modification involves an attempt at surface modification with peptide-polysaccharides systems. Inoculation of protein derivatives of collagen into polysaccharide (e.g. hiauloronian acid) and then an attempt to apply such a system to the carbon fibre surface is another step in the modification of the carbon scaffolds/membrane. On the one hand, this multifunctional medium should support the proliferation of cartilage and/or bone tissue, on the other hand, it should facilitate the process of monitoring the ossification of damaged tissue or the reconstruction of cartilage tissue.

Research facilities: The equipment available in the Departament of Biomaterials and Composites will be used to realize the project. Properties of 3D fibrous scaffold and 2D fibrous membranes will be tested by thermal (TG/DSC), spectroscopic (FTIR: ATR, DRIFT) and physicochemical (DSA 10Kruss goniometer) methods. Microstructure of non-woven surfaces will be performed using scanning electron microscopy (Nova NanoSEM) available in the Microscopy Laboratory WIMIC. Mechanical tests will be carried out using a universal testing machine (Zwick 1435) and thermomechanical tests of nonwovens in DTMA apparatus (TA Instruments). Biological tests will be carried out in cooperation with the Department of Anatomy of the Academy of Physical Education in Krakow. The durability of the biomaterials as well as the possibility of monitoring the behavior of the scaffolds in in vitro condition will be realized in cooperation with the WFiIS-AGH, Magnetic Resonance Laboratory. The doctoral dissertation will be a part of the project financial supported by the National Science Centre within the OPUS 16 programme entitled: The influence of hybrid carbon structures on the process of regeneration of cartilage/bone tissue.

Number of places: 1

 

40. Modifications of fibrous carbon scaffolds for activation of regeneration processes of cartilage and bone defects.

Supervisor: prof. dr hab. inż. Jan Chłopek

Auxiliary supervisor: dr inż. Patrycja Domalik-Pyzik

Faculty of Materials Science and Ceramics

Abstract: The study will be focused on the development of multiphase polymer-metallic systems for medical applications that will be based on biodegradable metal alloys, e.g. magnesium alloys, and selected resorbable polymers. Modern fabrication methods will be used in order to make materials with precisely defined properties. Also, ways to build 3D models composed of phases of different degradation rate will be developed. Different degradation rate and introduction of appropriate biologically active components will allow to support formation of new blood vessels that are essential for successful tissue regeneration. Fabricated materials will be characterized for their physicochemical properties, including degradation mechanisms of designed composite systems, as well as effectiveness of monitoring the degradation rate. Biological studies will be conducted to assess biocompatibility of developed systems and their ability to support new blood vessel formation and tissue regeneration.

Research facilities: Department of Biomaterials and Composites has a whole range of research facilities that allow to pursue multiple interdisciplinary scientific projects. The Department’s laboratory include laboratory of mechanical testing, surface analysis, microtechnology and biomaterials testing, thermal analysis and biological testing laboratories. The Department has also an unlimited access to the characterization equipment belonging to the host Faculty of Materials Science and Ceramics. The studies can be realized within scientific projects.

Number of places: 1

 

41. Biodegradable, multifunctional composite materials for tissue engineering.

Supervisor: dr hab. inż. Katarzyna Cholewa-Kowalska

Auxiliary supervisor: dr inż. Michał Dziadek

Faculty of Materials Science and Ceramics

Abstract: Next-generation biomaterials for tissue engineering especially for bone tissue engineering (BTE) besides stimulating bone formation are also expected to possess additional biofunctionalities, such us antibacterial, anticarcinogenic, antioxidant, anti-inflammatory, and immunomodulatory activities, to increase the rate of bone regeneration and to obtain therapeutic effects. For this reason the subject of proposed research is to design and fabricate multifunctional, bioresorbable composite materials enriched with polyphenolic compounds (PPh) derived from medical plants (i.e. sage/rosemary) and with individual polyphenols (i.e. gallic acid/rosmarinic acid/carnosic acid) with the broad spectrum of biological activity. The study concern evaluation of the possibility to control the material and biological properties of polyphenol-loaded composite biomaterials with the use of different polimer matrix (Amorphous/semicrystalline polymers) as well as different fillers type (submicrons/nanosized ceramic particles, carbon nanotubes). Finally, an attempt to obtain composite scaffolds, as novel carriers for PPh delivery, will be carried out. Since polyphenols and also type of fillers affect polymer solution properties that govern preparation process (i.e. solution viscosity, electrical conductivity and surface tension), the key issue will be to optimize the manufacturing parameters to obtain uniform composite scaffolds with unique and tunable biological activities.

Research facilities: Due to the interdisciplinary nature of the work, the research will be conducted at the AGH University of Science and Technology in Cracow (AGH) in cooperation with specialists from the Agricultural University in Cracow (UR) and the Jagiellonian University – Collegium Medicum (UJ-CM). AGH WIMiC has a well-equipped laboratory for sol-gel and biomaterial synthesis, as well as the equipment necessary to materials characterisation (m.in. SEM/EDX (Nova NanoSEM 200 FEI Europe Company/EDAX), laser diffraction particle size analyzer (Mastersizer, Malvern), zeta potential analyzer (Zetasizer, Malvern), BET analyzer (ASAP 2010), FTIR spectrometers (Bruker Vertex 80v) with ATR, DRIFTS, and KBr equipment, XRD (PANalytical X-ray Diffractometer X’Pert Pro), DSC/TGA coupled with FTIR (Netzsch STA 449 F3 Jupiter/Bruker Tensor 27), UV-Vis spectrometer (Jasco v730), , confocal microscope (Olympus Lext OLS4000), drop shape analyzer (Kruss DSA25), precision universal testing machine (Table Blue, Hegewald&Peschke), ICP-OES spectrometer (Plasm 40, Perkin Elmer). UR provides access to advanced equipment necessary for plant extract characterisation as well as obtained composites (m.in. high-performance liquid chromatpgraph HPLC (Shimadzu Prominence). Jagiellonian University – Collegium Medicum, are equipped with necessary modern devices required to perform all biological experiments.

Number of places: 1

 

42. Oxidation and degradation of high temperature materials.

Supervisor: dr hab. inż. Jerzy Jedliński, prof. AGH

Auxiliary supervisors: dr inż. Jarosław Dąbek, dr inż. Juliusz Dąbrowa, dr inż. Marek Zajusz, dr inż. Mirosław Stygar

Faculty of Materials Science and Ceramics

Abstract:Research topic concerns the oxidation behaviour and degradation under isothermal and thermal cycling conditions of high temperature materials or materials tested for such applications. Following groups of materials are involved:

I. structural, i.e.: (1) FeCrAl alloys/steels, used as heat exchangers, heating elements, automotive catalysts supports and planned to be used in generation IV of nuclear reactors; (2) the group of the so-called high-entropy alloys,

II coating materials from Ni-Al system, i.e. bond coat materials in TBS (Thermal Barrier Coating) systems, mainly: β-NiA intermetallic compound and γ/γ’-alloys (γ-Ni / γ’-Ni3Al).

The research will involve, depending on ultimate Ph.D. topic, which should be decided during the first year of studying, determination of: 1) oxidation kinetics, 2) oxidation course under thermal cyclic conditions, 3) oxidation mechanism (scale growth mechanism), 4) level and distribution of residual stresses, 5) degradation mechanisms, 6) reactive element effect.

Research facilities: Resources:

I. Human resources:

1. Internal: - professor (1), - cooperating staff experienced as principal investigators (5)

2. External Collaborators: 1) international – 3 groups (France – 1, USA – 1, Japan – 1); 2) Polish – 2 groups

II. Equipment resources:

1. In-Place (within the Group): 1) full set of pieces of equipment for studying the oxidation behaviour at temperature up to 1400⁰C: - kinetics (thermobalance); - isothermal oxidation (furnace + laboratory balance); - oxidation under thermal cyclic conditions (furnace + laboratory balance); - oxidation mechanism applying the 18O2 oxygen isotope as traces (one of the very few devices around the world), 2) facility enabling pre-oxidation under low pressure (closed system: furnace + vacuum pumps), 4) multistage surface analytical facility - SIMS (Secondary Ion Mass Spectrometry) -chamber + XPS chamber (X-ray Photolectron Spectroscopy)

2. Available at Faculty and/or at AGH: 1) sample preparation and machining devices; scanning electron microscope (SEM) with energy-dispersive X-ray spectrometer (EDX), 3) vacuum furnace to melt the alloys/materials, 4) X-ray diffractometer (XRD)

3. Available as a result of cooperation (national and international): 1) ion implanter; 2) photoluminescence spectrometer (PLS), 3) RBS (Rutherford Back-scattering Spectrometer) mass spectrometer.

Number of places: 2

 

43. Bioactive coatings on plasma activated surface of medical alloys for applications in bioengineering.

Supervisor: dr hab. inż. Karol Kyzioł

Faculty of Materials Science and Ceramics

Abstract: The aims of proposed research topic is surface modification of selected medical alloys (e.g. Ti6Al7Nb), including shape memory (e.g. NiTi), which are currently one of the most useful materials for application in bioengineering. In the case of using these materials in orthopedics and dental surgery, a lot of physicochemical and biological properties remain problematic, in particular those related to mechanical properties of the implant and bone tissue, biofilm formation during implantation or lack of osseointegration. A serious problem is also the presence of metals, which in turn may lead to metallosis, as well as toxic effects of Al and Ni on the body. The adopted research methodology addresses these problems and will include intentional, multi-stage surface treatment of selected medical alloys. In this respect, it is proposed to use among others methods of mechanical and chemical treatment, plasma processes in the reactor (including obtaining of layers based on DLC structures) as well as methods leading to obtaining functional coatings based on biopolymers (including chitosan, alginate, copolymers of lactic and glycolic acid (PLGA), also enriched by metal nanoparticles and/or antibiotics). The expected results of the doctoral thesis will be the development of useful solutions aimed at developing technologies leading to reduction of the unfavorable impact of using selected metallic implants with complex microgeometry (reduction of metallosis) and improving the antibacterial properties of the implant surfaces while maintaining their biocompatibility. In addition, based on the experimental work carried out, it will be possible to determine the most useful modification in relation to a specific part of the implant, which should ultimately contribute to the enhancement of the biofunction of the implants (incl. endoprosthesis with full mobility) and long life.

Research facilities: The research facilities include devices for obtaining layers as well as apparatus for characterization of their composition, structure, physicochemical and functional properties, including:

- RF-MW CVD (Radio Frequency - Micro-Wave Chemical Vapour Deposition) system for coatings deposition, Elettrorava S.p.A, Italy,

- RMS PVD (Reactive Magnetron Sputtering Physical Vapor Deposition) system for coatings deposition,

- a system for layers obtaining using methods from the immersion technique group (e.g. sol-gel),

- scanning electron microscope with EDS analyzer (Nova NANOSEM 200 (USA, FEI) JOEL, Oxford Instrument LINK ISIS),

- IR and Raman spectroscope (Bruker Vertex 70 FTIR),

- Hommel Tester 500 profilometer,

- system for determination of surface wettability (Kruss DSA10Mk2),

- X-ray diffractometer (Empyrean PANalytical) with equipment:

In cooperation with other centers (incl. University of Zaragoza, Faculty of Chemistry - Jagiellonian University, Faculty of Foundry of AGH UST, Faculty of Mechanical Engineering - Cracow University of Technology, Institute of Materials Science and Engineering - Lodz University of Technology), it is possible to perform biological properties, corrosion resistance, mechanical and tribological properties of tested samples. These departments have adequate equipments.

The research topics will be largely developed based on the results of work financed from research projects:

i. Bioactive chitosan layers on the plasmochemical activated surface of NiTi alloy, research project European Union and Ministry of Science and Higher Education, 2018-2019 (Principal Investigator, Karol Kyzioł, DSc, PhD, Eng.; Executor, Piotr Jabłoński, Eng.)

ii. Surface functionalization of Ti6Al7Nb alloy with biopolymers using plasmochemical activation, research project NCN, 2017-2018 (Principal Investigator, Karol Kyzioł, DSc, PhD, Eng.)

Number of places: 2

 

44. Modelling of viscosity controlled interdiffusion in surface layers.

Supervisor: dr hab. inż. Katarzyna Tkacz-Śmiech

Second supervisor: dr hab. Bogusław Bożek

Faculty of Materials Science and Ceramics

Abstract: The overall interdiffusion can involve complex interactions between the fluxes (cross effects), the formation of stresses, convective transport and plastic deformation. Interdiffusion, in this case, is often treated using Darken scheme in which the potential necessary to drive the plastic deformation is neglected. When interdiffusion takes place over large distances, the driving force leading to plastic deformation is negligible and the movement of faster component is rate limiting. For the diffusion at relatively small distance scales, such as in layers or multilayer systems, plastic deformation can become a rate-limiting step. A simple diffusion equation is in this case not adequate and a new approach is necessary since all the above phenomena and processes can be important in describing mass transport. The topic addresses the new understanding of diffusion in short-distance scale on an example of diffusion in surface layers (for example during nitriding). The model of interdiffusion will be proposed that combines elastic stress with plastic flow and base on Darken description of interdiffusion. A goal is to develop a computer program that allows simulations to be compared with experimental results.

Research facilities: The topic is theoretical. Its implementation is not connected with costs. The research will be based on the long-term experience of the promoter in diffusion modeling in materials. In the evaluation of the model, previous experimental results obtained by the promoter in the OPUS project "Modeling of reactive diffusion in the nitriding of metals and alloys of complex geometry - the influence of boundary conditions", financed from the NCN, will be applied. Supervision of dr hab. B.Bożek from the Faculty of Applied Mathematics will provide substantive care in the field of programming and computer simulations.

Number of places: 1

 

45. Non-homogenous thermoelectric materials.

Supervisor: prof. dr hab. inż. Krzysztof Wojciechowski

Faculty of Materials Science and Ceramics

Abstract: The subject of the project is the development of new thermoelectric materials with high efficiency in a wide range of temperatures. As part of basic research, two original concepts will be developed: composite thermoelectric materials mismatched phonon structure and adjusted electron structure (MPS-AES) and double-tuned functionally graded thermoelectric materials (DT-FGTM). Experimental research will be focused on the development of preparative methods of such materials using advanced manufacturing techniques (pulsed plasma in liquid, shock compression, high-gravity sedimentation). The produced materials will be used for the construction of prototypical thermoelectric modules for energy conversion.

Research facilities: The primary research will be carried out in the Laboratory of Thermoelectric Research at the Faculty of Materials Science and Ceramics as part of the TEAM-TECH project (Foundation for Polish Science). The laboratory has access to all equipment necessary for the synthesis of semiconductor materials and characterization of structural (XRD), microstructural (SEM, EDX) as well as electrical and thermal properties of materials. The research will be carried out in cooperation with Max Planck Institute for Chemical Physics of Solids, Dresden, which also has advanced tools for structural analysis (e.g., synchrotron research, high-resolution transmission electron microscopy HRTEM).

Number of places: 2

 

46. Thermoelectric legs based on non-homogeneous thermoelectric materials.

Supervisor: prof. dr hab. inż. Krzysztof Wojciechowski

Faculty of Materials Science and Ceramics

Abstract: The subject of the research concerns the development and construction of functional elements (thermoelectric legs) based on graded and composite thermoelectric materials. Research work will cover designing optimal geometric parameters and chemical composition of thermoelectric material (e.g.. gradient of dopants concentrations) along the axial cross-section of the thermoelectric leg for assumed temperature conditions of heat sources (source and sink) and performance parameters (i.e. efficiency, power density, OC voltage, maximum current). The selection of the above parameters in semiconductor devices will be conditioned by the electronic structure of material (eg Fermi level, bandgap) and its thermal and mechanical properties.

Research facilities: The primary research will be carried out in the Laboratory of Thermoelectric Research at the Faculty of Materials Science and Ceramics as part of the TEAM-TECH (Foundation for Polish Science) and TECHMAT-STRATEG (NCBIR) projects. The laboratory has access to all equipment necessary for the synthesis of semiconductor materials and characterization of structural (XRD), microstructural (SEM, EDX) as well as electrical and thermal properties of materials. It is also equipped in specialized technological facilities necessary for the construction of prototypical modules: reflow soldering line, equipment for sintering materials by SPS method, apparatus for the deposition of diffusion barriers by magnetron sputtering as well as test stands (including thermoelectric generator) for determining performance parameters and durability of thermoelectric modules. Faculty has a license for CFD (ANSYS) software.

Number of places: 2

 

47. Physicochemical properties of new β- manganite compounds.

Supervisor: prof. dr hab. inż. Krzysztof Wojciechowski

Auxiliary supervisor: dr Raul Cardoso-Gil

Faculty of Materials Science and Ceramics

Abstract: Nonmetallic filled β-manganite phases form a new class of solids with a wide spaced partial structure of nonmetal atoms, in which additionally a large number (about 100) of tetrahedral holes per unit cell exists. Semiconductors belonging to this group exhibit unusual thermoelectric, pyroelectric, and optical properties. The research will be focused on finding a correlation between crystal structure, electronic structure, and transport properties (i.e., thermal and electrical conductivities) of these materials.

Research facilities: The primary research will be carried out in the Laboratory of Thermoelectric Research at the Faculty of Materials Science and Ceramics as part of the TEAM-TECH project (Foundation for Polish Science). The laboratory has access to all equipment necessary for the synthesis of semiconductor materials and characterization of structural (XRD), microstructural (SEM, EDX) as well as electrical and thermal properties of materials. The research will be carried out in cooperation with Max Planck Institute for Chemical Physics of Solids, Dresden, which also has advanced tools for structural analysis (e.g., synchrotron research, high-resolution transmission electron microscopy HRTEM).

Number of places: 1

 

48. Thermoelectric modules for conversion of low-grade heat.

Supervisor: prof. dr hab. inż. Krzysztof Wojciechowski

Auxiliary supervisor: dr inż. Karol Sztekler

Faculty of Materials Science and Ceramics

Abstract: The subject of the research is the design and construction of prototypical thermoelectric modules for the conversion of waste heat from technological processes. Research work will consist in designing module construction and simulation using numerical CFD tools (e.g., ANSYS package) and then constructing prototypical modules based on previously developed thermoelectric materials and performing analysis of their performance and durability parameters. Besides, real condition-tests of the modules will be carried out in the target energy devices (thermoelectric generators).

Research facilities: The primary research will be carried out in the Laboratory of Thermoelectric Research at the Faculty of Materials Science and Ceramics as part of the TEAM-TECH (Foundation for Polish Science) and TECHMAT-STRATEG (NCBIR) projects. The laboratory has access to all equipment necessary for the synthesis of semiconductor materials and characterization of structural (XRD), microstructural (SEM, EDX) as well as electrical and thermal properties of materials. It is also equipped in specialized technological facilities necessary for the construction of prototypical modules: reflow soldering line, equipment for sintering materials by SPS method, apparatus for the deposition of diffusion barriers by magnetron sputtering as well as test stands (including thermoelectric generator) for determining performance parameters and durability of thermoelectric modules. Faculty has a license for CFD (ANSYS) software.

Number of places: 1

 

49. Application of geometric surface structure studies for determination of selected physical and functional properties of materials.

Supervisor: prof. dr hab. inż. Lucyna Jaworska

Auxiliary supervisor: dr inż. Sławomir Cygan

Faculty of Non-Ferrous Metals

Abstract: The research planned in this work is to adapt the instruments used to measure the geometrical structure of the surface as alternative tools for calculating the open porosity of samples with specific shapes and to develop a new, more accurate methodology for analyzing wear areas obtained with the ball - on - disc method. Until now, studies related to the surface area of ​​the abrasion path were associated with fairly low accuracy and repeatability of measurements. However, they were characterized by a large standard deviation of results. Research should lead to the development of new methods: porosity calculation and wear measurement after tribological tests. The wear track and pores are characterized by unusual geometry and the tests are often approximate, especially for small test objects. The tests will use the contact method of roughness measurement and (optionally) the optical method - confocal. As part of the doctoral thesis, it is planned to make a special rotary table for measuring the cross-sections of wear obtained during tribotests. The results of the work should have a positive impact on the reliability and repeatability of the results of wear tests performed using tribological testing methods and give the possibility to calculate the external porosity of people using instruments to study the geometric structure of the surface. The work plans to find links between the applied non-destructive testing methodology and the properties of materials. The tests will be carried out for various material groups.

Research facilities: The research was planned as a “doctorate in implementation”. Most of the research will be carried out in the Łukasiewicz Research Network - the Institute of Advanced Manufacturing Technologies. The Institute has appropriate equipment in the form of: ball-on-disk tribotester, helium porosimeter, many types of devices for measuring the state of the surface layer. As part of the doctoral thesis a special adapter will be constructed and implemented to improve the quality of research in the scope of determining open porosity and measurements of the path of material wiping after the ball-on-disk test. The Non-ferrous Metals Department has an appropriate research base for the characteristics of the material microstructure in terms of porosity and the evaluation of the mechanism of wear of the material in the ball-on-slip test. Both institutions provide full equipment necessary to carry out the tests.

Number of places: 1

 

50. Increasing the service life of tools for pumping components for small caliber and medium caliber ammunition against the background of the materials and coatings used.

Supervisor: dr hab.inż. Grzegorz Boczkal, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: The research topic of the implementation doctoral thesis concerns the increase of efficiency, and thus the reduction of production costs of small and medium-caliber ammunition components. This topic is very current and important from the point of view of the economy and defense of the country. Currently used press tools have a limited lifespan and increase their durability by up to several or more percent will have a significant impact on production costs. The key aspect of the problem is the right choice of tool material in combination with the use of surface coatings. In the doctoral thesis will be conducted a comparative analysis of the parameters of currently applied solutions, and then based on knowledge in the field of material engineering and carried out experiments to propose new, improved solutions. The final result of the work will be the implementation of the obtained technology on the production line.

Research facilities: MESKO has test stations and a testing ground, on which technological tests are carried out and products manufactured as part of research and development works are tested. MESKO owns a mechanical metrology laboratory and a pyrotechnic laboratory, which carry out acceptance tests of ammunition and rocket elements. The mechanical and metrological laboratory is equipped, among others, with in:>/p>

- strength machine - for tensile and compression tests to test the strength properties of the tools and components produced>/p>

- light microscope - for observing metallographic specimens>/p>

- spectrometer - for testing the chemical composition of steel>/p>

- hardness testers - for testing the hardness of materials and coatings.

 

51. Innovative semiconductor material for power industry.

Supervisor: dr hab.inż. Grzegorz Boczkal, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: Analysis of recent issues indirectly or directly connected with development thermoelectric materials technologies indicates the growing trend. This intensified development is the result of a multitude of application possibilities of thermoelectric materials, for example, in the power industry, thermoelectric generators TEG can be used for the direct conversion of thermal energy into electricity. However, technological progress is not possible without simultaneous basic research–industry knowledge transfer. Therefore, the main goal of my PhD thesis is development of the innovative semiconductor materials fabrication technology characterized with hi thermoelectric power-of-merit ZT. The main reason for taking this issue is a desire of deepening the knowledge about the semiconductor materials fabrication technology, which can significantly affect with improvement of the society life’s quality, due to the electronic devices efficiency enhancement. The vision of widespread use of thermoelectric generators can also positively affect the reduction of pollution and CO2 emissions to the atmosphere - which is a significant problem for the current civilization development.

Research facilities: Institute of Electronic Materials Technology possess very advanced and specialized apparatus, enabling possibility of fabrication processes with the powder metallurgy techniques, for example apparatus for materials sintering Spark Plasma Sintering (SPS) with maximum working temperature up to 2400 °C and heating rate up to 300°C/min, For detailed characterization of the materials such as: structure, microstructure, phase and chemical composition there would be used following methods: High resolution XRD (X-ray Diffraction); HR-SEM (Scanning Electron Microscopy), with EDS (Energy-Dispersive Spectroscopy).

For the thermoelectric figure of merit ZT calculations of the materials there are needed following physicochemical properties measured by following apparatus: Laser flash apparatus for thermal diffusivity Laser Flash LFA 457 NETZSCH Electrical measurement for electrical conductivity as a temperature function, Tmax= 550°C; Apparatus for determination of Seebeck coefficient as a temperature function, Tmax= 550°C.

Number of places: 1

 

52. Research on the optimization of horizontal continuous casting process used in production of various kinds of copper alloys.

Supervisor: dr hab. inż. Grzegorz Kiesiewicz

Faculty of Non-Ferrous Metals

Abstract: Within doctoral thesis, a theoretical and experimental research will be conducted allowing to optimize the horizontal continuous casting process, which will be carried out for selected copper alloys dedicated for the production of various load and current carrying elements. As part of the above research topic, it is planned to carry out works allowing to determine the impact of individual continuous casting parameters on the properties and quality of casts produced in the factory in the form of CuNi2Si and CuZn37Ni1Si0,5 alloy bars and to carry out research and design works allowing to improve the efficiency of the continuous casting process. It is planned that the above mentioned objective will be achieved through a thorough analysis of the technology used in the plant and conscious optimization of the parameters used so far as well as properly selected and then experimentally verified structural and technological changes both within the general construction of the resistance furnace and construction of its crystallization system. All the tests planned as part of the implementation of the doctoral thesis should enable to obtain increased efficiency of the casting process and at the same time maintain the quality of the casted products at the current level.

Research facilities: All of the research works planned within doctoral thesis, which are included in the description of research topic, will be carried out practically exclusively with the use of production plant own capabilities and laboratories and equipment available at the Non-Ferrous Metals Department at AGH University of Science and Technology. In particular, research works will be carried out on the horizontal continuous casting line located on the equipment of the KUCA Sp. z o.o. The production plant additionally has a fully equipped research laboratory including among others, the emission spectrometer for chemical composition analysis, a hardness tester allowing to measure in Rockwell, Brinell and Vickers scale and device for measuring electrical conductivity using the eddy current method. In addition, it is also planned to use equipment for machining, including a modern vertical CNC machining centre, which will allow to prepare good quality samples for further material testing. On behalf of the AGH University of Science and Technology, it is planned to use a laboratory system for continuous horizontal casting, mechanical testing machines, devices for measuring electrical conductivity (four-point method and eddy current method), hardness testers and surface roughness testers. Independently, it is also planned to use optical and electron microscopes for microstructural analysis installed at the Non-Ferrous Metals Department.

Number of places: 1

 

53. Research on a new CAST-EX-DRAW technology for manufacture of drawn products from copper alloys intended for machining process on high-speed cutting machines.

Supervisor: prof. dr hab. inż. Tadeusz Knych

Faculty of Non-Ferrous Metals

Abstract: CAST-EX-DRAW Tech. (Casting-Extrusion-Drawing_Technology), which is a subject of a doctorate, is a conception of a new technology of production of low and high-volume products from copper alloys brass type with a new standard of geometric quality intended for advanced machining process. The products being an effect of this technology stand out from the traditonal ones that are intended for machining process on multifunctional and high-speed cutting machines. Modern machining process (including turning and drilling) is based on that the proces takes place at a very high speed of the workpiece or device, which ensures high quality of the treated surfaces without the necessity of additional refinement operations. These speeds depending on the diameter of the workpiece, range from 5000 to 40000 rpm and the typical elements to be processed are rods and tubes from the lead brass group. Such conditions of machining proces result in very high demandings of the entire set of properties of the processed products, which include: high tolerance of linear dimensions, ideal straightness, stability of structure and mechanical properties, the lack of or low level on internal stresses, adequate surface quality. The aim of the doctoral thesis is to analyze the entire technological chain of production of drawn products, that is the process of preparing batch materials and casting ingots in the closed-circiut economy regime, heating up the batch and extrusion process, etching and drawing process for ready-made rods and a precisely defined level of mechanical properties. On the basis of conducted analysis, an experimental research program will be desined and implemented within each technological node enabling development of innovative production technology of a new generation of multicomponent brass rods with properties and dimensional tolerances that enable a safe machining process on high-speed cutting machines.

Research facilities: The research work under The Implementation Doctorate program will be conducted in the production plant with a modern machine park, technological processing lines, skilled personnel and managerial staff as well as research facilities including quality control laboratory fully equipped in various test stands allowing the technological tests of semi-finished and final products to be carried out. The research laboratories at The Faculty of Non-Ferrous Metals at the AGH University of Science and Technology in Cracow are equipped with specialist modern testing equipment and devices. Qualified scientific staff working at the research laboratories, i.e. Metal Working and Physical Metallurgy, Physical Chemistry and Metallurgy, Materials Science and Non-Ferrous Metals Engineering will ensure that the research within The Implementation Doctorate program  is conducted at the highest possible level.

Number of places: 1

 

54. Research of the technology of high elasticity, fireproof and hydrogen embrittlement resistance cables for intelligent devices according Industry 4.0.

Supervisor: dr hab. inż. Beata Smyrak, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: The research issue focuses on the development of high flexibility, high fire resistance and hydrogen embrittlement resistant cables for Industry 4.0. devices. Abstract The scope of research will be interdisciplinary because it will be related to the field of material engineering of non-ferrous metals (especially copper) and plastics as well as the area of ​​electrotechnology regarding, among other things, electromagnetic compatibility, etc. In particular, the research will address the following challenges: selection of copper-based conductive material with high hydrogen embrittlement resistance, determination the mechanical and structural state of a copper-based material influence on its deformability in the drawing and stranding process, elaboration of conditions for extruding the strand insolation made from ceramization silicones, elaboration of parameters for the process of stranding insulated wires, elaboration of conditions for adapting products to the requirements of electromagnetic compatibility on the way of the shielding process and development of the technology of applying the fireproof outer layer of the cable. The result will be modern cables and wires for use in Industry 4.0 devices with a new functional set that guarantees high electrical conductivity, high fire resistance, resistance to hydrogen disease and above-standard flexibility.

Research facilities: The research work under The Implementation Doctorate program will be conducted in the production plant with a modern machine park, technological processing lines, skilled personnel and managerial staff as well as research facilities including quality control laboratory fully equipped in various test stands allowing the technological tests of semi-finished and final products to be carried out. The research laboratories at The Faculty of Non-Ferrous Metals at the AGH University of Science and Technology in Cracow are equipped with specialist modern testing equipment and devices. Qualified scientific staff working at the research laboratories, i.e. Metal Working and Physical Metallurgy, Physical Chemistry and Metallurgy, Materials Science and Non-Ferrous Metals Engineering will ensure that the research within The Implementation Doctorate program  is conducted at the highest possible level.

Number of places: 1

 

55. Creating an optimal numerical model of the methanation reactor.

Supervisor: dr hab. inż. Marek Wojnicki

Faculty of Non-Ferrous Metals

Abstract: The goal of the implementation doctorate is to create a numerical model of the reactor for the methanation process. The methanation process is currently considered as a potential system for converting electricity to chemical energy. It can be a kind of energy storage. Unlike hydrogen (hydrogen energy), methane storage is cheap and simple. Most importantly, Poland already has a developed infrastructure for the transmission of this gas, so the implementation of this technology requires only an efficient methanation reactor. This process is thermodynamically highly exothermic. Therefore, the challenge for the industry is to create the right reactor that can meet the basic expectations, ie: safety, low cost of production, low cost of operation and energy efficiency. Precisely because of energy efficiency, it is necessary to create a mathematical model of such a reactor, taking into account the basic thermochemical parameters such as: chemical reaction kinetics, thermal effects of the chemical reaction and transport of reagents and heat resulting from the reaction. These last issues are the most complex. The efficiency of heat exchange depends on the dynamics of the flow and the shape of the exchanger, but also on the properties of construction materials. In the modeling process, literature data on the properties of materials used in the project will be used. The chemical reaction model and kinetic parameters of this process are also known and published. When selecting materials, their chemical and physical properties will be taken into account, ie corrosion resistance, resistance to so-called hydrogenosis, susceptibility to bonding by techniques ensuring tightness and strength of the joint and thermal conductivity and mechanical strength. Therefore, the challenge is to combine knowledge from different fields of science and create a reactor model that will create a safe full-size real object for methanation.

Research facilities: Comsol Multiphisics Software

Number of places: 1

 

56. Development of anti-corrosion coating for unprotected part of steel crown cap.

Supervisor: dr hab. Piotr Żabiński, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: The crown closure consists of a metal cap and a plastic gasket made from PVC or PE based compound. For the production of metal closures, a sheet is coated with a tin or chromium layer on both sides. The thickness of the sheet is usually from 0.18 mm to 0.23 mm. Depending on the method of securing the surface finish, internal adhesive varnishing is used and on the external surface the basecoat lacquer, lithography print and coating varnish that protects the surface. Sheet metal is fed to the press, where the process of pressing the cap takes place. Then they are transported to the extruder, where the process of applying the gasket takes place. The last stage is packing. Corrosion can appear on the unsecured part of the crown of the cap that appears during the pressing process. The problem of corrosion mainly occurs in breweries, where the bottles are first washed and may not be sufficiently dried. After filling them with beer and closing with a steel cap, the pasteurization process is carried out for about one hour at a temperature of 60-70 ° C depending on the type of product. There is a moment of a high risk of corrosion in the unprotected crown cap area. An additional favorable environment for corrosion may also be the packaging process of bottles immediately after the pasteurization for plastic packaging. The development of anti-corrosion coating for the unsecured part of the crown cap allows reducing the problem of corrosion and related complaints for the company.

Research facilities: Measurement of loss of lacquer after tumbling (dusting test), evaluation of corrosion resistance in copper sulphate solution, measurement of electrochemistry on the Enamel Rater device.

The laboratories at the Faculty of Non-Ferrous Metals are equipped with all required equipment inessential for realization of the proposed thesis: potenciostats/galvanostats, bipotentiostats, electrochemical quartz microbalance combined with flow electrochemical cell rotating disc and rotating-ring disc electrode UV-VIS-NIR spectrophotometers, UV-VIS spectrofluorimeter, ellipsometer, optical and confocal microscopes, atomic forces microscope, scanning tunnel microscope, x-ray diffractometer, x-ray spectrofluorimeter (WDS), scanning electron microscope with EDS, WDS and EBSD detectors, transmission electron microscope with EDS detector, FT-IR spectrometer, ultra-fast UV-VIS spectrometer (up to 1 kilo spectras/s), high speed camera (up to 1 kilo fps), UV-Vis spectrophotometer for stopped flow techniques, high pressure reactor PARR (up to 200 bar), micro flow reactors (up to 20 bar), DLS spectrometer equipped with zeta potential option, Microwave Plasma-Atomic Emission Spectrometer, atomic absorption spectrometer.

Number of places: 1

 

57. Improvement of the quality of high pressure die castings through the use of 3d printed die parts and vacuum.

Supervisor: prof. dr hab inż. Mirosław Głowacki

Auxiliary supervisor: dr inż. Dorota Wilk-Kołodziejczyk

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The discussed issue is related to the limitation of the amount of air being closed and shortening the solidification time of the casting in the mold cavity. During the casting process, a moving portion of liquid metal "pushes" the air that fills the cavity of the pressure mold. In addition, air, which is located in the piston chamber, is introduced into the liquid metal and in the form of blisters that have not been removed, remains in the structure of the casting creating discontinuities. Such defects may contribute to the reduction of quality, e.g. tightness. The use of vacuum casting systems, i.e. connection of the pressure mold to the mold de-aeration system, aims at removing the air from the mold cavity when the liquid metal flows. If this technique is used, it is problematic to adjust the operating parameters of all equipment. For this purpose a computer simulation program will be used in this case the Flow3D. The computer simulation takes into account the movement of the piston acting on the liquid metal, which allows a very accurate analysis of the removal of air volume from the mold cavity. In the case of using a vacuum system, it is very important to choose the technological parameters, i.e. the moment of introducing liquid metal into the mold cavity and the starting moment of the vacuum system. Another issue in the topic will be the solidification of liquid metal in the volume of the mold cavity after it is filled. In the case of pressure castings, the last solidifying part is the so-called foot and it determines the cycle time. The element responsible for reconstruction of the feet is a distributor, which in its design has a simple cooling system in the form of channels. The construction of the distributor with a complicated channel system is impossible with traditional mechanical methods. For this purpose, 3d printing can be used by selective laser sintering. The combination of these two topics, namely vacuum-assisted casting and 3D printing of pressure mold parts can allow to obtain a casting of higher usable quality. The results of NDT analysis will be compared with the results of a computer simulation of the manufacturing process. One of the planned scientific results will be to determine the difference between classic casting and casting with the use of vacuum and printed elements. An analysis of microstructure and mechanical properties of samples obtained directly from the castings will be carried out. The experimental tests carried out will allow validation of the results obtained during numerical calculations, and thus it will be possible to extend the existing database with the parameters of new production methods. In addition, determining the optimal conditions for heat treatment of printed elements will be a very helpful database that can be used for other works using printed elements.

Research facilities: The Foundry Research Institute possesses the most modern programs for computer simulation of foundry processes (MAGMA, ABAQUS, FluidFlow, PANDAT) and advanced devices for rapid prototyping, melting of metal alloys and small-lot production of cast parts from Al, Mg, Zn, Sn, Cu, Ni and Fe alloys , Co, Ti, from metal-ceramic composites, functional gradient materials, as well as highly porous metals and alloys, using technologies such as: traditional molding in sand, metal molds, precision casting and advanced technologies in which pressure is an element supporting the casting process (liquid pressing, high pressure casting, low pressure casting, centrifugal casting, hot isostatic pressing). The organizational structure of the FRI includes, among others: Design and Prototyping Center, High Temperature Research Center, Research Laboratory, Certification and Standardization Office and Center of Excellence for Advanced Foundry Technologies, whose activity focuses on various aspects of integrating Polish R & D potential in the field of science and technology. Within the FRI there are also establishments such as: Ferros Metals Department, Technology Department and Non-Ferrous Metals Department, which one of the main tasks is support and implementation of new technologies in industry, conducting research work and audits. An important product of individual plants are patents and developed technologies. In this respect, it is often necessary to reach a compromise between modern and advanced solutions, the expectations of the production plant, and the entire cost of the entire investment. The Foundry Research Institute also conducts a continuous analysis of current trends and development directions of various aspects of the Foundry industry, verifying the results obtained in Poland and abroad, using its own resources.

Number of places: 1

 

58. Research into the innovative roasting process of copper concentrate under the Głogów Copper Smelter conditions.

Supervisor: dr hab. inż. Beata Hadała

Faculty of Metals Engineering and Industrial Computer Science

Abstract: Subject of research concerns technology of copper concentrate roasting under the Głogów Copper Smelter conditions. The main goal of research is improvement of the process productivity. The roasting process did not achieve the required productivity. The roasted concentrate has chemical and phase composition differing from that required. The chemical composition of gaseous phase indicates that hydrocarbon and carbon oxide have not been converted completely. It forces the need to improve technological parameters of the roasting process and adjustment of equipment to new demands. The proposed research will be focused on process thermodynamic, metallurgy, data mining and quality analysis. The final goal of research is focused on gathering knowledge about the process leading to required properties of roasting concentrate. The basic researches will focused on charge characterization and determination of the process parameters coupled with the concentrate properties. The energy balance of the furnace will make possible determination of the optimal parameters of the roasting process. The subject of research is closely related to requirements of KGHM Polska Miedź S.A and is focused on new furnace and equipment dedicated for roasting concentrates reach in coal. The project is of a research and development type.

 

 

Research facilities: The equipment necessary to perform researches will be available from KGHM Polska Miedź S.A. The plant laboratories have equipment necessary to analyze charge and product properties at each stage of the roasting process. Build in data collecting systems supply necessary parameters of the process and final product. Supplementary equipment will be available from the Faculty of Metals Engineering and Industrial Computer Science.

 

 

Number of places: 1

 

59. Development of guidelines for the rolling technology of alloy steel products to optimize the morphology of austenite microstructure and its transformation products.

Supervisor: dr hab. inż. Krzysztof Muszka

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The usefulness of construction materials used for welded constructions, in addition to strength and ductility, is determined in particular by the impact toughness, measured depending on the conditions of its application, at ambient temperatures or at temperatures lower than -20 °C. An alternative to traditional rolling of continuous rods is normalizing rolling, which results in homogenisation and fragmentation of the microstructure, affecting the improvement of mechanical and technological properties of the product. The purpose of controlled rolling is to prepare the austenite microstructure so that the ferrite formed during cooling is characterized by high level of grain refinement, providing the steel with optimum strength and impact toughness resistance. Lack of knowledge about the effect of deformation history and the resulting heterogeneity of austenite microstructure development in rod rolling processes does not allow for effective optimization of hot metal forming processes, which makes it difficult to introduce to the market long products made from more sophisticated steel grades (e.g. HSLA steel - High Strength Low Alloy). The production of these requires precise control of the microstructure development process at every stage of production - from continuous casting, through the process of batch heating, rolling in initial and finishing stands, and the cooling process after the final deformation. Understanding the relationships between continuous casting, heating, hot rolling and cooling and the level of heterogeneity of the obtained microstructure, will allow to optimize the process in terms of improving the obtained properties - mainly strength and impact toughness at reduced temperatures. The expected effect of this doctoral thesis will be a comprehensive model for predicting properties after hot metal forming and cooling to room temperature for selected steels.

Research facilities: The research work will be realized in the Department of Metal Forming, Faculty of Metals Engineering and Industrial Computer Science AGH. Department is equipped with all necessary equipment: two and four stand rolling mills, heating furnaces as well as mechanical testing and plastometric testing laboratory. Also, during project realization Scanning Electron Microscope with EDS, EBSD and in-situ tensile stage with heating, will be used. Faculty successfully runs a number of research projects financed by NSC Poland, NCRD as well as other EU funds.

Number of places: 1

 

60. Analysis of the impact of physicochemical parameters of a 3XXX aluminum alloy batch sheet on the formation of jams during can production by means of physical process simulation.

Supervisor: prof. dr hab. inż. Andrij Milenin

Auxiliary supervisor: dr inż. Tomasz Latos

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The subject of the research topic in the doctoral thesis will be to solve the technological problem consisting in a periodic decline in the efficiency of the line producing aluminum beverage cans caused by the change of the input material. The consequence of changing the coil is the transition from the stable production state to the state with an increased amount of jam on the machines. A frequent consequence of such a state is the withdrawal of the defective coil from production and putting it back on the warehouse. After putting another coil on the line, production is stable again. Due to the invariability of the parameters of the production process and the parameters of the machines during conversion, it can be concluded that the problem is not in the machines but in the material. In the doctoral thesis is planned to analyze all possible physicochemical parameters that can be measured or calculated and to select the most important of them in the context of generating jams. Then, measurements will be made among others parameters such as yield strength, tensile strength limit, elongation, oil weight and others. Measurements will be made for both good and defective coils and from the beginning, center and end of the coil to compare them. The next step will be finding a critical place on the line where the greatest number of jams exists and on this basis will design and made a physical model of simulating the operation of the machine in this critical place. It will allow to carry out research on it, enabling assessment of the impact of various parameters on the process as well as determining the process windows for the tested parameters. Thanks to this, it will be possible to determine if a given coil poses a threat to the drop in performance before it is put on the line. The result of the research will be the development of instructions and procedures for operators to enable them to make the right decision on using the coil for production.

Research facilities: Department of Applied Computer Science and Modelling has its own software for modeling tensile tests using the FEM method (author A.Milenin). The Department also has a license for Qform software, including the possibility of inverse analysis. For verify the developed model, the Faculty of Metals Engineering and Industrial Computer Science has a testing machine Zwick 250.

Number of places: 1

 

61. Development of the calibration method for yield stress model for conditions of production process of beverage end made of aluminum alloy series 5xxx and its application in FEM for evaluation process of new technological solutions.

Supervisor: prof. dr hab. inż. Andrij Milenin

Auxiliary supervisor: dr Dawid Wodka

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The research task will refer to development calibration method of yield stress model for production process of beverage end made of aluminum alloy series 5xxx. Development of calibration method for this process according to standard procedures is not possible because of high material elongation and complicated geometry shape of final beverage end (prepare of sample is not possible). In order to perform calibration, hardness measurement and inverse analysis will be carried out. Inverse analysis will consist FEM simulation of hardness measurement test and obtained force results adjustment by yield stress correction to results of physical measurements. The developed method will be helpful in FEM evaluation process of innovative solutions in production technology and alternative shapes of the beverage ends. New technological solutions will have an impact on efficiency increase and reduction of the production costs of beverage end.

Research facilities: Department of Applied Computer Science and Modelling has its own software for modeling hardness tests using the FEM method, including the possibility of developing and implementing a inverse analysis algorithm (author A.Milenin). The Department also has a license for Qform software, including the possibility of inverse analysis. For verify the developed model, the Faculty of Metals Engineering and Industrial Computer Science has a testing machine Zwick 250. The research task will be implemented as part of the AGH project with the company CAN-PACK S.A. (contract at the signing stage, head from AGH side A. Milenin).

Number of places: 1

 

62. The influence of physicochemical parameters of the initial material and forming tooling geometry on the improvement of the score line formation process for beverage ends from 5xxx aluminum alloys.

Supervisor: prof. dr hab. inż. Andrij Milenin

Auxiliary supervisor: dr inż. Łukasz Zając

Faculty of Metals Engineering and Industrial Computer Science

Abstract: The subject of the research topic within the framework of the doctoral thesis will be the analysis of the impact of physicochemical parameters of the material and tooling geometry on the improvement of forming the score line for a beverage end made of aluminum alloy series 5xxx and its functionality and quality of the final product. The need to conduct research will be based mainly on the assessment of what parameters are the most important and determine the correctness of the product produced. The work will include research on the properties of the batch material and geometry of the shape of the tool and the impact of its use on the quality parameters of the end. On this basis, a time will be elaborated for replacing the tools in order to maintain the appropriate level of quality of the lids produced. In addition, based on the research, production parameters will be determined at which the product meets the requirements in accordance with the specification. Improving the process of forming the score line for beverage ends is a key factor at this stage of production. The research carried out and based on the conclusions drawn will improve the quality of the product, which, as a consequence, will reduce production costs and increase the satisfaction of our customers.

Research facilities: The Department of Applied Computer Science and Modelling also has a license for Qform software, including the possibility of simulation forming the score line for a beverage end. For verify the developed model, the Faculty of Metals Engineering and Industrial Computer Science has a testing machine Zwick 250.

Number of places: 1

 

63. Electrochemical formation of surface morphology for superhydrophobicity of galvanic coatings.

Supervisor: dr hab. Ewa Rudnik, prof. AGH

Faculty of Non-Ferrous Metals

Abstract: The main objective of the project is a development of the electrochemical synthesis of metallic coatings with a special hierarchical surface topography and superhydrophobic properties. It is postulated that such coatings can exhibit very high resistance to electrochemical corrosion and thus their life-span will be significantly longer than that of traditional galvanic coatings. The role of crystallographic lattice of the coating’s metal in the development of two-tier surface morphology in micro- and nanoscale will be investigated. The influence of the current/potential parameters of one-step and two-step electrolysis, pH and bath composition on the surface topography, wettability and corrosion resistance of the coatings will be determined. It is also claimed that long-lasting experiments will confirm stability and durability of the superhydrophobic properties of the metallic coatings and thus their stable high anticorrosion properties.

Research facilities: Faculty Non-Ferrous Metals has premises and research equipment necessary to carry out the works. The following should be mentioned here: potentjostats/galvanostats; electrochemical quartz microbalances; totating disk electrodes; Nikon light microscope with modern image analysis software, high-resolution scanning electron microscope with a field with thermal-assisted field emission; atomic force microscope, scanning tunnel microscope; X-ray diffractometer; X-ray spectrofluorimeter; a goniometer for measuring the contact angle; thermostats; scales, dryers; pH meters, titrators, spectrophotometers, etc. Ph.D. Student will also have access to a modern laboratory for sample preparation (including polishers, dusters, cutters, etc.). The research work will be carried out at the Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals FoN-FM AGH. There is a possibility to carry out works under the Preludium competition.

Number of places: 1

 

64. Theoretical and technological basis for the selection of optimal methods for the regeneration of used core masses and the use of regeneration in the conditions of Huettenes-Albertus Polska in Lublin.

Supervisor: dr hab. inż. Rafał Dańko

Auxiliary supervisor: dr inż. Ion-Alexandru Bacanu

Faculty of Foundry Engineering

Abstract: The process of regeneration of used moulding and core sand as new adhesives applied to these materials develop and are put into service makes it necessary to continuously improve the theoretical basis and equipment for this process, especially with a view to its optimal implementation in industrial practice. Improvement of methods of dry mechanical regeneration and development of existing systems of regeneration implementation requires development and practical implementation of scientific bases for a uniform system of comparing the effects of regeneration, regardless of the differences in behaviour of used binding materials during the execution of machining processes. Within the framework of the PhD thesis it is planned to expand and update the theoretical considerations of the promoter, described by the energy model of the process of grinding the consumed moulding sand as a result of elementary regeneration processes. The feature of the model is a clear exposure of the crushing process in the process of releasing the quartz matrix in the form of sand grains from the layers of used binding material. The model is based on the assumptions of Rittinger's deterministic theory and its later developments. An important element of the work will be the adaptation of theoretical models of grain material classification for the effective selection of grain classes of regenerates with parameters and purity similar to fresh sand. The studies carried out within the framework of the work will concern mainly:

the influence of specific mechanical and, in justified thermal cases, representative of solutions applied in practice on the degree of release of the matrix from the casings of used binding material, characteristic for typical varieties of moulding sand used in foundry industry,

evaluation of energy intensity and influence of process factors determining the effective grinding to the assumed size of solid particles and clusters of used moulding sand, whose matrix is a bonded material of various degrees of thermal destruction,

determination of effective ways of technological use of the obtained regenerate together with the development of theoretical foundations for automatic quality control systems of the regenerate and optimal possibility of its use.

As a result of the work at the Huettenes-Albertus Polska plant, an innovative mechanical regeneration system with controlled processing intensity will be implemented, combined with a system of automatic analysis of the regeneration quality and optimal use of the regeneration method.

Research facilities: The Faculty of Foundry Engineering of AGH University of Science and Technology has the necessary research facilities to carry out the planned work. The most important elements of this equipment are: original, prototype mechanical vibration regenerator REGMAS, protected by patents granted in the USA, EU and Poland, laboratory systems to evaluate the possibility of regeneration of used moulding sand by mechanical methods: pneumatic, centrifugal, rotor, mechanical-cryogenic and thermal. laser particle size meter Analysette 22NanoTec, specialist apparatus for determining the properties of moulding and core materials, apparatus for determining the properties of the surface of the matrix of moulding and core materials, devices for measuring the degree of softening of moulding masses with resins (hot distortion) due to the interaction of high temperature.

Number of places: 1

 

65. Development of a methodology for determination of resistance to hydrogen embrittlement in steel elements coated with galvanic coatings.

Supervisor: prof. dr hab. inż. Krzysztof Wojciechowski

Faculty of Materials Science and Ceramics

Abstract: The aim of the project is the development of the diagnostic technique for fast analysis of the content of hydrogen at the surface area of steel elements after the process of deposition of galvanic coatings. The presence of hydrogen dissolved in metal significantly influences the change of electron properties of the metal - (e.g., work function, Seebeck coefficient) but the formation of micro defects (microcracks, dislocations) affects transport properties (e.g., thermal or electric conductivity) and surface hardness. Linking the results of the analysis of selected physical properties with tests of chemical composition (hydrogen content), structural analysis and the results of standard tensile strength tests will allow finding a significant correlation which can be the basis for developing a rapid diagnostic technique. It is assumed that the research methodology developed as part of the doctoral thesis will allow for initial and fast assessment resistance to hydrogen embrittlement, without the need to destroy the tested element, just after the galvanization process and before and after thermal treatment.

Research facilities: The Faculty of Materials Science and Ceramics of AGH-UST has modern research facilities enabling advanced material research including structural (XRD), microstructural (SEM + EDX), strength analysis, as well as, investigation of local physical and chemical properties of materials. In particular, the Laboratory of Thermoelectric Research has unique equipment (Scanning Thermoelectric Microprobe) allowing for the study of the surface distribution of the Seebeck coefficient, electric and thermal conductivity, thermogravimetric apparatuses and test stand for electroplating. The Collins Aerospace branch in Jesionka also has rich research facilities. On its premises, several chemical analyzes and metallographic examinations are performed, i.e., strength tests, microscopic analysis, mechanical properties (including microhardness), corrosion resistance, chemical composition, and coating thickness (X-Ray, Dualscope) measurements. Also, the laboratory is equipped with a scanning electron microscope SEM with the possibility of studying the local chemical composition (EDX). The research will be conducted jointly with the financial support of Collins Aerospace Company.

Number of places: 1

 

66. The metallurgy of high-quality ductile cast iron

Supervisor: prof. dr hab. inż. Dariusz Kopyciński

Faculty of Foundry Engineering

Abstract: The issue concerns research into slag formation in nodular cast iron castings, as well as improvement of existing metallurgical technology or implementation of a new solution to improve the treatments of liquid metal, to obtain a maximally high-quality and stable process. Moreover, attention should be paid to the mold technology and the quality of molding and core compounds in order to exclude their interference in the formation of casting defects associated with oxidation. The selection of appropriate parameters of the above-mentioned processes and stabilization of these processes may result in making castings of nodular and vermicular cast iron in which there are no slag defects.

Research facilities: At METALPOL, the doctoral student will have at his disposal four induction furnaces with a capacity of 6t, two moulding lines (vertical division of the form, Loramendi, and a horizontal box line BMD), machines for making cores in hot-box and cold-box technology, spectrometer for chemical composition tests , station for nodularization by rod method, optical microscope, machine for tensile strength tests, Brinell hardness tester, ultrasonic flaw detector, lathes and milling machines (including numeric).

Number of places: 1

 

67. Laser Additive Manufacturing of Ceramic and Metallic Composites

Supervisor: prof. dr hab. inż. Dariusz Kata

Auxiliary supervisor: dr inż. Paweł Rutkowski

Department of Ceramic and Refractory Materials, Faculty of Materials Science and Ceramics

Abstract: Nowadays, popularity of additive manufacturing methods have risen significantly. Main beneficiaries of this technique are companies that need to use large amount of prototypes before starting continuous production. It is especially used in energy, biomedical and aerospace industries. Laser processing is attractive because of superior process parameters control. It allows designing of final properties of materials for specific applications. Research is focused on interaction between laser radiation with different kind of materials. Obtained three dimensional structures are going to be investigated by microstructural, thermal and mechanical properties.

Research facilities: Department of Ceramic and Refractory Materials is equipped with unique apparatus for laser additive manufacturing of ceramic and metallic materials. Department has a whole range of research facilities that allow to conduct multiple interdisciplinary scientific projects. The Department’s facility include the following laboratories: (1) mechanical testing, (2) microstructure evaluation, (3) thermal material properties detection (4) synthesis of advanced ceramic, metallic and composite materials. Additionally, the Department has unlimited access to the characterization equipment belonging to the host Faculty of Materials Science and Ceramics. The studies can be realized within scientific projects.

Number of places: 2

 

68. New strategies for designing of air electrode for Solid Oxide Fuel Cells having enhanced electrocatalytic activity

Supervisor: prof. dr hab. inż. Konrad Świerczek

Faculty of Energy and Fuels

Abstract: The topic concerns identification and understanding of the basic principles determining the electrocatalytic activity of the oxygen reduction reaction at temperatures of 400-600 °C, occurring for the proposed new groups of oxides with a perovskite, which are considered as potential cathode materials for the so-called low temperature solid oxide fuel cells (LT-SOFCs). According to the main hypothesis, comprehensive research concerning the basic physicochemical properties of the materials (bulk-and surface-related), supplemented by numerical calculations, will allow to explain the mechanisms of reactions occurring on the air electrodes, as well as will enable to identify limiting steps of kinetics of the electrochemical processes. In addition, it is assumed that by combining the modification of the bulk properties of electrode materials (appropriate selection and amount of added dopant) and adjusting the electrode’s microstructure (spatially oriented morphology), as well as the electrode/electrolyte interface, it is possible to overcome the limitations associated with sluggish kinetics of electrode processes at reduced temperatures, and thus, to develop effectively-working(i.e. exhibiting high electrocatalytic activity) electrodes for LT-SOFC technology.

Research facilities: Topic is implemented as a part of the subsidy and targeted NCN project (if granted). Currently, there is a possibility of financing under another NCN project. Research facilities include laboratories at the AGH Center of Energy and the Faculty of Energy and Fuels, equipped with a set of necessary equipment, among others, XRD diffractometer, thermobalances, systems for measuring transport properties, needed equipment for the construction of LT-SOFC cells, systems for measurements of the electrochemical properties of fuel cells, and others.

Number of places: 1

 

69. Synthesis of ultralight engineering materials on the example of magnesium gasars

Supervisor:  prof. dr hab. inż. Jerzy J. Sobczak

Faculty of Foundry Engineering

Abstract: As a result of the specific nature of gas pores creation on the front of metal solidification, functionally metal-gas graded materials with high usually directed oriented porosity, are named either “gasars” (as effect of thermodynamic gas-eutectic transformation) or “lotus-like structures” (as effect of physical gas evacuation from liquid metal being solidified). The term "gasar" comes from Russian and is a combination of abbreviations from two words: "gas" and "armirovat" (which means "to reinforce"). This kind of novel material is not only ultralight but is having unique set of properties: mechanical, physical, electrical and thermophysical. Gasars in which an additional reinforcement phase or solid insert has been intentionally applied for pressure-temperature management of gas porosity formation are called hybrid gasars compare to conventional ones. The general objective of the work will be to master the production technology of these innovative materials with a selected magnesium and hydrogen matrix and their comprehensive structural characteristics using the latest non-destructive testing methods, including computed tomography. Investigations of the properties of the gazelles as a function of the varying degree of porosity will be carried out, which will allow to specify the areas of their practical application. The scientific aim of the work will be to try to specify the mechanism of formation of gases from the point of view of physics and/or thermodynamics of the process.

Research facilities: Currently, the Faculty of Foundry Engineering has research facilities that partially enable implementation of the proposed topic. In particular, the FoFE provides access to the experimental foundry, access to property tests, including DSC thermal analysis, optical and scanning microscopy, and sample preparation preparations for testing. The equipment is planned to be equipped with modern equipment for non-destructive testing as well as physical and chemical tests in a liquid metal-gas-solid system. Cooperation with ACMiN, IMMS PAS and research units dealing with the production of highly porous materials in the country and abroad is expected.

The research issue will be implemented as part of the research project " Theoretical and methodological aspects of metal-gas interaction for synthesis and strengthening of highly porous ordered metallic structures by liquid-assisted processing" (Agreement No. UMO-2018/31 / B / ST8 / 01172 to the project nr 2018/31 / B / ST8 / 01172, financed by the National Science Center - in the signature).

Number of places: 1