ADVANCED MATERIALS


Dissertation thesis topics

The dissertation thesis topics proposed within the Advanced Materials research programme correspond to the research interests and objectives of the following research groups: Advanced Ceramic Materials, Cybernetics in Material Science, Advanced Polymers and Composites and Advanced Metallic Materials and Metal-Based Composites. For details click on the title of dissertation.



RG 2- 1 Advanced Ceramic Materials (Martin Trunec)


Perovskite materials for catalyc and energetic applications 

For more details please contact the supervisor.

► Advanced Ceramic Materials

Supervisor: Cihlář Jaroslav, prof. RNDr., CSc. 


Study of 3D-printing of advanced ceramic materials based on colloidal LCA method

The work is focused on the study of 3D-printing of advanced ceramic materials based on the new 3D-photolithographic method (LCM- Lithography-based Ceramic Manufacturing) by means of the CeraFab 7500 equipment (Lithoz GmbH). Work will deal with preparation and study of stable homogeneous colloidal dispersions containing light-sensitive polymers and ceramic fillers to obtain dispersions suitable for 3D-printing of advanced oxide ceramics. PhD student will deal with issues of theoretical study and with an experimental study of the properties of colloidal polymer-ceramic dispersions, dispersion behaviour at 3D-printing and sintering of printed objects and evaluation of physical, mechanical and chemical properties of printed ceramics in relation to the structure of ceramics and conditions of the technological process.

 Advanced Ceramic Materials

Supervisor: Cihlář Jaroslav, prof. RNDr., CSc. 


Nanostructured composites with a hierarchical structure

The topic of the dissertation is the study of polymer/inorganic composite biomaterials with a hierarchical structure composed of a nanofiber and nanoparticle components. Nanofiber polymeric components are prepared by methods electrospinning or centrifugal spinning and bioactive inorganic nanoparticles by ultrasonic or microwave synthesis. Preparation of hierarchical structures (biocomposites) will be studied by means of template methods and 3D-printing. The structure, mechanical and biochemical properties of biocomposites and their interactions with bone cells and tissues will be evaluated.

► Advanced Ceramic Materials

SupervisorCihlář Jaroslav, prof. RNDr., CSc. 


Photoelectrochemical splitting of water and inorganic substances

The topic of dissertation relates of a photoelectrochemical splitting of water and organic materials (aliphatic alcohols, aldehydes, etc.) in the visible spectrum. Experimental work will deal with the synthesis of photocatalytic active inorganic semiconductors and their modifications (eg. by carbonaceous phases), the preparation of stable colloidal precursors for the deposition of photoactive layers, preparing of photoelectrons and photoelectrochemical cells (reactors) and measuring of photoelectric parameters of photoelectrochemical cells and photocatalytic efficiency of photoreactors. The dissertation will also be focused on the study of the structure of the photocatalytic active systems and their interpretation by appropriate structural models and on the design of foto electrocatalytic reactors in order to achieve maximum efficiency in the transformation of reactants and hydrogen production.

 Advanced Ceramic Materials

SupervisorCihlář Jaroslav, prof. RNDr., CSc. 


Ceramic high-temperature fuel cells and electrochemical reactors

The dissertation focuses on the study of ceramic high-temperature fuel cells and electrochemical reactors using organic compounds (hydrocarbons, aliphatic alcohols, etc.) as fuel or reactants. The experimental part of dissertation will deal with the synthesis of nanoparticles and colloidal precursors for preparation of ceramic high-temperature electrolytes, anodes and cathodes and manufacture of components, fuel cells and electrochemical reactors (electrolyte, electrodes…). To measure the electrical parameters of fuel cells and electrochemical parameters of electrochemical reactors the device of FulCellmaterials company for testing fuel cells, combined with a high-impedance spectroscopy and mass spectrometry will be used. The main aim of the dissertation is finding new electroceramic materials for reducing operating temperature of the fuel cells and to achieve maximum electrochemical efficiency of reactors.

► Advanced Ceramic Materials

Dissertation focuses on the study of ceramic high-temperature fuel cells and electrochemical reactors using organic compounds (hydrocarbons, aliphatic alcohols, etc.) as fuel or reactants. The experimental part of dissertation will deal with the synthesis of nanoparticles and colloidal precursors for preparation of ceramic high-temperature electrolytes, anodes and cathodes and manufacture of components, fuel cells and electrochemical reactors (electrolyte, electrodes…). To measure the electrical parameters of fuel cells and electrochemical parameters of electrochemical reactors the device of FulCellmaterials company for testing fuel cells, combined with a high-impedance spectroscopy and mass spectrometry will be used. The main aim of the dissertation is finding new electroceramic materials for reducing operating temperature of the fuel cells and to achieve maximum electrochemical efficiency of reactors.

The dissertation focuses on the study of ceramic high-temperature fuel cells and electrochemical reactors using organic compounds (hydrocarbons, aliphatic alcohols, etc.) as fuel or reactants. The experimental part of the dissertation will deal with the synthesis of nanoparticles and colloidal precursors for the preparation of ceramic high-temperature electrolytes, anodes and cathodes and manufacture of components, fuel cells and electrochemical reactors (electrolyte, electrodes…). To measure the electrical parameters of fuel cells and electrochemical parameters of electrochemical reactors the device of FulCellmaterials company for testing fuel cells, combined with a high-impedance spectroscopy and mass spectrometry will be used. The main aim of the dissertation is finding new electroceramic materials for reducing an operating temperature of the fuel cells and to achieve maximum electrochemical efficiency of reactors.

SupervisorCihlář Jaroslav, prof. RNDr., CSc. 


Electrospinning of ceramic and composite fibers 

The main objective of the study will be fabrication and characterization of electrospun ceramic based fibers for electric and electrochemical applications.

Advanced Ceramic Materials

SupervisorČástková Klára, doc. Ing., Ph.D. 


Colloidal processing of ceramic nanoparticles

The subject of the PhD study is focused on shaping and consolidation of nanoceramic oxide particles. The main task of the student will contain a study of bulk colloidal ceramics processing using ceramic particles with size below 100 nm via colloidal shaping methods. The research will concern primarily with methods of direct consolidation of ceramic particles. A common difficulty of all these methods lies in the preparation of a stable concentrated suspension of nanoparticles with appropriate viscosity. The solution of the problem assumes understanding and utilization of colloidal chemistry and rheology of ceramic suspensions.

Advanced Ceramic Materials

SupervisorTrunec Martin, prof. Ing., Dr. 


Machinable ceramics for 3D milling

The topic of this PhD study is a development of processing methods for a unique manufacturing of ceramic prototypes and small series of complex ceramic parts using 3D milling. The dissertation is focused on research into semiproducts (blanks) of advanced ceramics for 3D milling based on zirconia, alumina, calcium phosphates and other materials for dental and structural applications and prospectively even for customized complex-shaped surgical implants. The blanks will be prepared for both dense ceramic parts and bodies from a ceramic foam. For preparation of large and complex parts shaped machinable blanks will be developed that can ensure reliable and economical production of such parts.  The blanks will be processed by CAD/CAM methods utilizing CNC milling.

► Advanced Ceramic Materials

The topic of this PhD study is a development of processing methods for a unique manufacturing of ceramic prototypes and small series of complex ceramic parts using 3D milling. The dissertation is focused on research into semiproducts (blanks) of advanced ceramics for 3D milling based on zirconia, alumina, calcium phosphates and other materials for dental and structural applications and prospectively even for customized complex-shaped surgical implants. The blanks will be prepared for both dense ceramic parts and bodies from a ceramic foam. For preparation of large and complex parts shaped machinable blanks will be developed that can ensure reliable and economical production of such parts.  The blanks will be processed by CAD/CAM methods utilizing CNC milling.

SupervisorTrunec Martin, prof. Ing., Dr. 


3D printing of ceramic structures by LCM Method

The PhD work will be concerned with manufacturing of complex ceramic parts with internal structure using the LCM method (Lithography-based Ceramic Manufacturing). The research will be focused on investigation of ceramic suspensions for the LCM method and on correlation between the processing conditions of LCM method and the properties of the final ceramic parts. The research will be aimed at applications in medicine. The internal structure of calcium phosphate bioscaffolds for bone regeneration will be optimized with respect to modification of ceramic skeleton with inorganic as well as organic biopolymers.

 Advanced Ceramic Materials

SupervisorTrunec Martin, prof. Ing., Dr. 


Advanced ceramic materials and composites with multifunctional properties

The development in the field of advanced ceramic materials is directed to so-called multifunctional materials characterized by appropriate combination of mechanical, optical, biological, electrical or magnetic properties. The design such materials includes selection of input powder precursors as well as advanced methods of their shaping and sintering leading to desired, usually heterogenous, microstructures. The aim of the dissertation work will be utilization of modern approaches of ceramic processing technology (plasma activation of precursors, dry and wet shaping methods, pressure-less or pressure-assisted sintering in various atmospheres) for preparation of multifunctional ceramic materials and composites, including evaluation of their properties linked to possible application.  Thesis will be supported by running mentor’s projects, such as „Development  of  functional  ceramic  and  glass  ceramic materials  in  collaboration with  the  Centre  of Excellence FunGlass“, „Physical activation of ceramic particles surface towards improved fine-grained advanced ceramics“, „Control of microstructure and properties of lead-free piezoceramic materials through advanced ceramic processing“, or „Transparent Alumina for Energy Saving Light Sources”.

 Advanced Ceramic Materials

SupervisorMaca Karel, prof. RNDr., Dr. 


The presence of trace additives in advanced ceramics and their influence on sintering 

Processing of advanced ceramic materials have been developed during a hundred year for wide range of applications. Recently, chemical analysis have reached new level state of art, which allows analysis of very low concentration of various elements in the ceramic matrix. Dopants or impurities plays crucial role in design of mechanical and functional properties of ceramic materials. Aim of this Ph.D. study is quantitative, qualitative and distribution analyses of elements added or naturally occurring in ceramics at very low concentrations. High resolution transmission electron microscopy will be applied to trace the presence of low concentration dopants in ceramic microstructure. The main research focus will be on distribution of dopants in the microstructure after rapid sintering.

 Advanced Ceramic Materials

Processing of advanced ceramic materials has been developed during a hundred year for wide range of applications. Recently, chemical analysis has reached new level state of art, which allows analysis of very low concentration of various elements in the ceramic matrix. Dopants or impurities plays crucial role in design of mechanical and functional properties of ceramic materials. The aim of this Ph.D. study is quantitative, qualitative and distribution analyses of elements added or naturally occurring in ceramics at very low concentrations. High-resolution transmission electron microscopy will be applied to trace the presence of low concentration dopants in ceramic microstructure. The main research focus will be on distribution of dopants in the microstructure after rapid sintering.

SupervisorSalamon David, doc. Ing., Ph.D.


Shaping of bioceramic materials on micro level

Research in bioceramics is very rapid and directed towards application and preparation of customized scaffolds is required.  Porosity, shape of pores and internal channels are main parameters which have to be balanced to achieve tailored biological and mechanical properties. Aim of this Ph.D. study is tailoring of ceramic microstructure by customized shaping by combination of processing methods such as ice-templating, microtemplating, and slip-casting. Main investigated properties of ceramic bio scaffolds are porosity and microchannels architecture with focus on potential application in bone replacements or inorganic cells guides.

► Advanced Ceramic Materials

SupervisorSalamon David, doc. Ing., Ph.D. 


Application of rapid sintering for local arrangement of ceramic microstructures

Development of advanced ceramic materials has emphasis on understanding the mechanical properties of ceramics and on improving their strength, toughness and damage resistance. Microstructure tailoring is crucial tool for this research, however localized microstructure tailoring is limited by possible localization of chemical or density compositions. The aim of this Ph.D. study is an investigation of the local application of rapid heating on microstructure tailoring. The proposed research is mainly focused on energy transfer via radiation and its new potential for control of microstructure. Future applications are in development of unique ceramic microstructures with better mechanical properties.

 Advanced Ceramic Materials

SupervisorSalamon David, doc. Ing., Ph.D. 


Study of electrical and impedance characteristics of thermally stressed dielectrics 

In the course of the research, the student will become familiar with the current status of insulation materials and their behaviour at low, room and high temperatures. The research will lead to the design and development of methods that can be used to continuously monitor the insulation properties of the dielectrics and to predict the practical lifespan of the insulators and their resistance to extreme temperatures. The principal experimental method will be the measurement of complex impedance at variable temperatures as well as the measurement of DC resistance and loss factor at 50 Hz. The methodology will be supplemented by monitoring ageing due to sunlight exposure.

 Advanced Ceramic Materials

SupervisorVanýsek Petr, prof. RNDr., CSc.  








Redox flow cells for energy storage

In this work, the students will learn the current issue of storing energy through electrochemical redox flow cells. The experimental work will lead to the improvement of electrochemical cells based on the principle of reduction of vanadium compounds and to design and development of cells with new types of redox systems eventually aimed to replace the vanadium cells.

 Advanced Ceramic Materials

Supervisor: Vanýsek Petr, prof. RNDr., CSc.


Optical and electrochemical monitoring of the state of charge of electrochemical cells

In this work the students will become familiar with current issues in energy storage electrochemical redox flow cells and with monitoring the extent of their state of charge. The research will lead to the design and development of methods that can be used for continuous monitoring of the state of charge status. Two basic principles will be used: first, optical tracking in those systems where the spectrum varies coloration due to state of charge, and second, in the absence of optical changes,  measuring electrochemical properties.

 Advanced Ceramic Materials

Supervisor: Vanýsek Petr, prof. RNDr., CSc. 


Modelling of the dependence of measured electrical and electrochemical material properties on the actual physical shape and dimensions of the studied samples

In this work the student will become familiar with problems of electrical and electrochemical measurements (especially impedance, voltage and current distribution on the electrodes and the flow of material in electrochemical cells). The student will concurrently learn the principles of computer modeling through the method "Finite Elements Modelling" while using commercial software. Computational research will lead to the clarification of the best practice for practical measurements, proposals for possible new practical geometry and the feedbacks to colleagues who are developing samples of functional designs.

 Advanced Ceramic Materials

SupervisorVanýsek Petr, prof. RNDr., CSc. 




RG 2-3 Advanced Polymers and Composites (Josef Jančář)


Morphological modifications of photocatalysts and their influence on photocatalytic activity 

The accessible surface of the catalyst plays a very important role in the photocatalytic process. Its magnitude is related to the so-called textural properties of the material (porosity, specific surface) and it can be influenced, among other things, by mechanical modifications (milling). The subject of the thesis will be the study of the influence of sophisticated mechanochemical processing (so-called pearl milling) on the properties of photocatalysts and their layers. Further attention will be paid to the study of the processes in the presence of dispersing agents and/or binders.

 Advanced Polymers and Composites

Supervisor: doc. Ing. Petr Dzik Ph.D. 


Influence of self-assembly of hydrogels on its deformation response

For detailed info please contact the supervisor.

► Advanced Polymers and Composites


Self-assembly has significant influence to the deformation properties of hydrogels. This influence is not described in detail in literature. The task for PhD-student will be mapping of the different mechanisms of self-assembly. Selected mechanisms will be modelled by molecular dynamics. By this model, the student will analyze the transformation of self-assembly structures during deformation. Their influence to deformation behaviour will be investigated.

SupervisorŽídek Jan, Mgr., Ph.D. 


Bottom-up assembly of nature inspired structural hierarchies

For detailed info please contact the supervisor.

► Advanced Polymers and Composites

SupervisorJančář Josef, prof. RNDr., CSc. 



25. Effect of nanoparticle type, temperature, strain rate and system preparation technique on the non-linear deformation response of polymer glasses

For detailed info please contact the supervisor.

Effect of nanoparticle filler on physical behaviour and performance of stabiliser system in polymer 

For detailed info please contact the supervisor.

 Advanced Polymers and Composites


27. Effect of nanoparticle filler on physical behaviour and performance of stabiliser system in polymer

Effectiveness of stabilizers (antioxidants) in the polymer matrix is given not only by their chemical structure enabling them reactions with oxidative degradation intermediates, but also by their mobility within the polymer matrix and resisting the outer deteriorative impacts, capable of decreasing their level in polymer. Physical behaviour of stabilizer in the polymer matrix basically influences its polymer-protective performance. The presence of modifying nanofiller, which even in relatively low concentrations effectively impacts the physical behaviour of macromolecules and consequently changes physical properties of polymer matrix, influences also the behaviour and effectiveness of stabilizer system.  Investigation of the effect of presence of nanofiller on behaviour and function of particular groups of polymer stabilizers (processing, long-term, UV) in dependence on their chemical structure should be the objective of this doctoral thesis.

Supervisor Jančář Josef, prof. RNDr., CSc. 


Lightweight polyolefin structures with impact resistance engineered at nano-scale

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

SupervisorJančář Josef, prof. RNDr., CSc.


Effect of nanoparticle type, temperature, strain rate and system preparation technique on the non-linear deformation response of polymer glasses

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

Supervisor: Jančář Josef, prof. RNDr., CSc.


Effect of nanoparticle filler on physical behaviour and performance of stabilizer system in polymer

The effectiveness of stabilizers (antioxidants) in the polymer matrix is given not only by their chemical structure enabling them reactions with oxidative degradation intermediates but also by their mobility within the polymer matrix and resisting the outer deteriorative impacts, capable of decreasing their level in polymer. Physical behaviour of stabilizer in the polymer matrix basically influences its polymer-protective performance. The presence of modifying nanofiller, which even in relatively low concentrations effectively impacts the physical behaviour of macromolecules and consequently changes physical properties of polymer matrix, influences also the behaviour and effectiveness of stabilizer system.  Investigation of the effect of presence of nanofiller on behaviour and function of particular groups of polymer stabilizers (processing, long-term, UV) in dependence on their chemical structure should be the objective of this doctoral thesis.

► Advanced Polymers and Composites

SupervisorTocháček Jiří, doc. RNDr., CSc.


Cell-Carriers by Chemical Modification of Polysaccharides

For more details contact the supervisor.

 Advanced Polymers and Composites

The aim of this dissertation is to use chitin/chitosan and their new derivatives (with different alkyl chains) and collagen to prepare 3D scaffold. The new chitin/chitosan derivatives will be used as matrices for different inorganic material (nano/micro hydroxyapatite, iron oxide). The chemical-physical interactions of the new nanocomposite will characterized by different tools (FTIR-TGA, NMR, XRD, SEM, TEM). The antibacterial, cytotoxicity, healing and histology of the new 3D bioscaffold will be analyzed and evaluated.

SupervisorAbdel-Mohsan Abdel-Lattif, Dr., Ph.D


Control release of bioactive substances using 3D hollow fiber scaffold and their application in bone and cartilage regeneration

For more details contact the supervisor.

► Advanced Polymers and Composites

Supervisor: Abdel-Mohsan Abdel-Lattif, Dr., Ph.D.


Mouldable hydrogels and their medical application

For more details contact the supervisor.

 Advanced Polymers and Composites

Supervisor: Abdel-Mohsan Abdel-Lattif, Dr., Ph.D.


Studies on preparation of self-healing hydrogel fabricated from biopolymer and their application

For more details contact the supervisor.

 Advanced Polymers and Composites

SupervisorAbdel-Mohsan Abdel-Lattif, Dr., Ph.D.


Fabrication and characterization of nanofibers based on bionanocomposite and their medical application

For more details contact the supervisor.

 Advanced Polymers and Composites

SupervisorAbdel-Mohsan Abdel-Lattif, Dr., Ph.D.


Chemical modification of biopolymers and their applications

For more details contact the supervisor.

 Advanced Polymers and Composites

SupervisorAbdel-Mohsan Abdel-Lattif, Dr., Ph.D.


Effect of protein encapsulation on their controlled release accelerating regeneration of damaged tissue

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

SupervisorVojtová Lucy, doc. Ing., Ph.D.


Hydrogel hybrid networks from biodegradable copolymers for medical applications

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

SupervisorVojtová Lucy, doc. Ing., Ph.D.


Optimisation of biomechanical properties of composite resorbable cements for bone regeneration

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

SupervisorVojtová Lucy, doc. Ing., Ph.D.


Effect of cell and scaffold staining on their 3D imaging using nanoCT

For detailed info please contact the supervisor.

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

Supervisor: Vojtová Lucy, doc. Ing., Ph.D.


Modification of synthetic hydrogels by biologically active substances

For detailed info please contact the supervisor.

 Advanced Polymers and Composites

SupervisorVojtová Lucy, doc. Ing., Ph.D.


Reactive Modification of Poly-3-hydroxybutyrate

Object of the Ph.D. Thesis is reactive modification of poly-3-hydroxybutyrate (P3HB) with radical reaction initiated e.g. thermic, radiation and unsaturated monomers such as GMA, VAS, MAH etc., follow ENE-, condensation and addition reaction of compounds and polymers with attached suitable functional groups for reduction of symmetry and possibly formation of branched and crosslinked structures. Characterisation of reaction products can be carried out using FTIR, DSC, DMA, GPS etc. An influence of modifiers concentration and polymer structure on to crystallisation behaviour and some mechanical properties of modified P3HB will be observed.

 Advanced Polymers and Composites

SupervisorKučera František, Mgr., Ph.D




RG 2-4 Advanced Metallic Materials and Metal-Based Composites (Jan Klusák)


Phase stability and magnetism of thin surface layers in Fe, Co, Pd a Pt binary alloys

FePd, FePt, CoPt, and other magnetic layers became extensively investigated because of their potential application in ultrahigh magnetic recording media. The aim of the study is to delimit a theoretical region of stability for selected crystals of binary alloys. A student will make a model of such crystals under simulated deformations using some of available ab initio codes. In particular, magnetic phase transitions will be studied during the deformation. Results will be compared with available literature data measured on thin films.

 Advanced Metallic Materials and Metal-Based Composites

SupervisorČerný Miroslav, doc. Mgr., Ph.D.


Mechanic stability and strenght of crystalline solids from first principles

The aim of the study is to delimit a region of mechanical stability of selected crystals under nonhydrostatic triaxial loading. For this purpose, phonon spectra will be computed for the crystals in their ground states as well as in deformed states. Phonon spectra will be obtained using force constants that will be computed by the VASP code.

Advanced Metallic Materials and Metal-Based Composites

SupervisorČerný Miroslav, doc. Mgr., Ph.D.


Properties and behaviour of advanced materials in xvery-high-cycle fatigue régime

Special engineering and bio-mechanical applications require the use of advanced materials. Because of their cost and purpose it is essential to ensure adequate strength of components made from them over the lifetime. From the viewpoint of material fatigue the number of load cycles often exceeds 107. Materials for these special applications will be tested in very high cycle fatigue regime, i.e. from 106 to 1010 cycles. Numerical simulations by FEM will be used to design specimens, tests will be carried out on ultrasonic testing machine, failure mechanisms will be searched using a scanning electron microscope.

► Advanced Metallic Materials and Metal-Based Composites

SupervisorKlusák Jan, doc. Ing., Ph.D.

 
Fracture mechanics of concentrators in composite materials

Composite materials exhibit outstanding properties thanks to suitable junction of two different materials. However, sharp materials interface can lead to degradation of the properties. Conditions of crack initiation in places of sharp shape and materials changes will be determined and evaluated using the procedures of generalized fracture mechanics.

 Advanced Metallic Materials and Metal-Based Composites

SupervisorKlusák Jan, doc. Ing., Ph.D.


Magnetic properties of high-entropy alloys

So-called high-entropy alloys represent one of the most promising classes of modern materials. They are characterized by specific atomic distributions when a number of chemical species randomly occupy crystalline lattice positions. Combination of different elements and their concentrations provide materials with a wide range of unique properties. After years of intensive research focused on mechanical properties of high entropy alloys, the international scientific community has become recently interested in their magnetic properties. These will be the main topic of the proposed PhD program. The planned measurements will be supported by theoretical simulations. The research will be based on a recent cooperation of Czech, German, Austrian and American scientists: O. Schneeweiss, M. Friák, M. Dudová, D. Holec, M. Šob, D. Kriegner, V. Holý, P. Beran, E. P. George, J. Neugebauer, and A. Dlouhý, Magnetic properties of the CrMnFeCoNi high-entropy alloy, Physical Review B 96 (2017) 014437.

 Advanced Metallic Materials and Metal-Based Composites

SupervisorFriák Martin, Mgr., Ph. D. 


Theory-guided materials design of new ferritic superalloys

For further details, contact mafri@ipm.cz

33. Theory-guided materials design of new ferritic superalloys

For further details, please contact mafri@ipm.cz.

 Advanced Metallic Materials and Metal-Based Composites

SupervisorFriák Martin, Mgr., Ph. D. 


First-principles modelling of  metallic nanocomposites

One of the most interesting types of metallic nanocomposites is so-called superalloys formed by two different phases coherently sharing a common crystal lattice at the length scale of dozens and hundreds of nanometers. They exhibit a range of remarkable mechanical properties. Next to well-known classes of superalloys based on nickel or cobalt, there is a newly emerging class of very promising ferritic materials containing Fe and Al as base elements. The topic of the proposed doctoral thesis is a theoretical study of Fe-Al superalloys employing quantum-mechanical calculations and a design of their new chemical compositions.

► Advanced Metallic Materials and Metal-Based Composites

SupervisorFriák Martin, Mgr., Ph. D. 


Damage mechanisms in nickel superalloys

Study of the damage in materials working at high temperatures in order to increase the fatigue and creep life and improve the energy efficiency of machines and equipment in aeronautics and energy production. Adopt demanding experimental techniques as computer controlled electrohydraulic testing machines and modern analytical methods (FESEM, EBSD FIB, TEM et al.) and study the behavior of nickel superalloys in conditions close to the service conditions. The principal damaging mechanisms during isothermal, high temperature fatigue in interaction with creep damage (dwells in a cycle) and during thermomechanical cyclic loading will be analyzed and used in prediction of service life.

Advanced Metallic Materials and Metal Based Composites

SupervisorPolák Jaroslav, prof. RNDr. DrSc., dr.h.c.


Damage mechanisms in multiaxial fatigue

Damage mechanisms in uniaxial (tension/compression) cycling have been studied in details at first in simple model materials and later in complex application oriented alloys. In multiaxial fatigue, the main effort has been oriented to developing reliable fatigue life prediction models. Much less have been done concerning physical mechanisms of fatigue damage. The PhD. study will be oriented on studying of 1) evolution of dislocation substructure; 2) nucleation of short fatigue cracks; 3) kinetics of short crack growth in condition of combined axial and torsional cyclic loading. Some experiments will be done on Cu as a model material. 316l stainless steel will be in main focus. Student will perform mechanical tests on MTS 809 servohydraulic machine and will use in detail modern analytical methods, especially electron microscopy.

Supervisor: Tomáš Kruml, prof. Mgr., CSc.


 RG 2-06 Advanced Low-Dimensional Nanomaterials


Electrochemical synthesis, characterization and applications of new types of 1D valve metal oxide nanostructures

Nanotubes and nanopores of inorganic oxides represent very hot materials with a range of interesting functional applications. This in particular true for nanotubular TiO2 and nanoporous Al2O3. However, there is a whole range of metal oxide materials that have not been exploited so far in these shapes. The most effective and straight-forward technique for synthesis of these materials is electrochemical anodization of a corresponding metal. The aim of this Ph.D. study is therefore synthesis of new types of metal oxide nanotubes and nanopores on various alloys (based on Ti and other less common valve metals, such as Nb, Hf, W, Bi, etc.). These materials are expected to have very attractive properties that will be characterized and exploited for various applications. The supervisor (ERC grantee) belongs among world leading experts in this field.

Advanced Low-Dimensional Nanomaterials

Supervisor: Macák Jan, Dr. Ing.


Preparation of thin functional valve metal oxide layers and their nanostructuring

This Ph.D. thesis will be focused on the investigation of semiconducting and optical properties of thin layers of metal oxides (such as TiO2, WO3, Ta2O5, etc.). Layers of various oxides (and their mixtures) will be prepared by various means:  thermal oxidation, anodic oxidation, atomic layer deposition, etc. State-of-art characterization techniques will be utilized to investigate fundamental properties of these layers. Further treatment of these layers using doping, advanced lithographic techniques, focused-ion beam, etc. is also planned to obtain novel semiconducting structures with interesting electronic, catalytic and optical properties for various applications (solar cells, batteries, capacitors, etc.).

 Advanced Low-Dimensional Nanomaterials

SupervisorMacák Jan, Dr. Ing.


Synthesis, characterization and applications of new types of fiberous structures 

Fiberous materials represent scientifically and technologically highly interesting materials, owing to their easy preparation, compositional flexibility, dimensionality, possibility to tune fiber dimensions vs. porosity, etc. The aim of this thesis is to develop new compositions and structures of fibers with diameter on the sub-micron or micron scale. The focus will be given on polymeric as well as inorganic fibers (in particular oxides) that have potential for filtration and catalytic applications. Two techniques will be mainly used: centrifugal spinning and electrospinning. Various shapes of fiberous structures will be investigated, including planar layers, bulky forms, fibers with a specific orientation, etc. The conducted research will be very application oriented. Cooperation with partners from industry is expected for the testing of the application potential of developed fibers. In particular, part of the thesis will be also devoted to the development of electrically conducting fibers for various applications in textile, electronic and military industries.

 Advanced Low-Dimensional Nanomaterials

SupervisorMacák Jan, Dr. Ing.


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Supervisor: Kučera František, Mgr., Ph.D