The list of national projects SAS
Institute of Materials Research
Application of innovative nanocatalysts and DFT simulations for efficient hydrogen production
Aplikácia inovatívnych nanokatalyzátorov a DFT simulácií pre efektívnu výrobu vodíka
Degradable metallic biomaterials with controlled drug release
Degradovateľné kovové biomateriály s riadeným uvoľňovaním liečiv
Development of technology for the manufacture of FeGa-based alloys for high-frequency devices.
Development of technology for the manufacture of FeGa-based alloys for high-frequency devices.
| Duration: |
15.10.2020 - 14.10.2023 |
| Program: |
MoRePro |
| Project leader: |
Ing. Milyutin Vasily PhD |
| Annotation: | The iron-gallium alloy has the great prospect of widespread use in industry, as a material for the production of modern smart systems, including those operating at elevated temperatures, mechanical loads, and high frequency magnetization fields. This is due to the number of unique functional characteristics, namely, large tetragonal magnetostriction in small magnetic fields, weak hysteresis, high Curie temperature and weak dependence of properties on temperature, moreover, this alloy has relatively good mechanical properties, which makes it possible to produce thin sheets from it for use in high-frequency devices, such as ultrasound transducers and dispersants. For this purpose, it is necessary to create a given crystallographic texture and microstructure by selecting the optimal modes of rolling and annealing, which is impossible without comprehensive studies of the patterns of structural evolution in this alloy. Despite the good mechanical properties compared to, for example, Terfenol-D, the problem of FeGa double alloy is low plasticity, which can lead to cracking during rolling, which makes it difficult to manufacture sheets of this alloy in industrial conditions. The first way to solve this problem in the project is small additions of alloying elements, which lead to a significant increase in plasticity. We will study the processes of structure and crystallographic texture formation in double and doped alloys, their correlation with the modes of thermomechanical processing, the establishment of the physical causes of such a correlation. The second way is use of new achievements of powder metallurgy for FeGa compaction. This will significantly reduce magnetic loses without the need for thin sheet, but at the same time reduce magnetostriction, our task is find a balance. The purpouse of the project is comprehensive study of the structure formation processes in the FeGa alloy under different conditions and the development of optimal fabrication regimes. |
Dual-phase high-entropy ultra high temperature ceramics
Dvojfázová vysokoentropická ultravysokoteplotná keramika
Hydrogen evolution electrocatalysts for future electrolyser and fuel cells
Elektrokatalyzátory pre efektívnu produkciu vodíka pre budúce elektrolyzéry a palivové články
| Duration: |
1.7.2021 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
RNDr. Strečková Magdaléna PhD. |
| Annotation: | The development of activities in the field of hydrogen technologies was also supported by the European
Commission in the strategic document "Hydrogen Strategy for a Climate Neutral Europe". Today, Slovakia has
suggested own national hydrogen strategy. Already in 2015, the National Hydrogen Association has founded to
support research, implementation and use of hydrogen technologies. The Hydrogen Technology Center is being
established in Košice with the main "Power-to-Gas" concept using renewable power energy sources with no
negative impact on human life and without dependence on fossil fuels. A significant source of hydrogen is water
and the electrolysis of water is the most promising technology for hydrogen production. However, before it can be
recognized as an economically significant resource for large scale application with an exceptional energy potential,
the simple, efficient, and secure methods of hydrogen retrieval have to be developed. For the time being, the most
efficient electrocatalysts in terms of overpotential for hydrogen evolution reaction (HER) are noble metals.
Unfortunately the high cost and scarcity of noble metals motivate the scientists to find the rival low-cost
alternatives. Intrinsic structures of TMP meet the criteria of outstanding electrocatalysts that could further improve their HER performance in membrane electrode assembly. Excellent dispersity of electrocatalysts allows full use of
active sites on catalysts to participate in electrode reaction to improve the electrocatalytic efficiency. Therefore, the
main challenge in this project is to reduce the production cost of HER and at the same time to maintain the high
efficiency of polymer electrode water electrolysis. Substantial aim of the project will be devoted to improve the PEM water electrolysis components mainly electrode materials based on modified carbon fibers electrocatalysts result in the technology which should be more approached to commercial markets. |
Functional properties of compacted composites based on magnetic particles with surface-modified properties.
Funkčné vlastnosti kompaktovaných kompozitov na báze magnetických častíc s povrchovo modifikovanými vlastnosťami
| Duration: |
1.7.2021 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
Ing. Bureš Radovan CSc. |
| Annotation: | The project is focused on the experimental and theoretical research of the soft magnetic composites in order to improve their functional properties. Magnetic powder composite systems will be prepared by advanced innovative chemical and mechano-chemical routes and powder metallurgy techniques not yet used by default. The series of composite samples will be prepared with insulated ferromagnetic particles of different morphology and properties with properly selected dielectric phases. The expected results will bring the novel advanced materials intensifying the application potential in electrical engineering as well as extend the theoretical modeling the magnetization processes in the soft magnetic composites and build up the database with the data structure utilizable for the application of artificial intelligence in the development of novel materials. |
Chorioallantoic membrane - in vivo model for study of biocompatibility of materials
Chorioalantoická membrána - in vivo model pre štúdium biokompatibility materiálov
Innovative approaches to increase the lifetime and reduce the energy consumption of cutting tools in wood processing in forestry
Inovatívne prístupy k zvyšovaniu životnosti a znižovaniu energetickej náročnosti rezných nástrojov pri spracovaní dreva v lesníctve
| Duration: |
1.7.2022 - 30.6.2026 |
| Program: |
SRDA |
| Project leader: |
RNDr. Džupon Miroslav PhD. |
| Annotation: | The project will address the issue of the use of methods and procedures for the modification of cutting tools for wood processing in forestry. The result will be an increase in their lifetime and a reduction in emissions and energy consumption of forestry machinery and equipment. The main objects of research will be tools for primary wood processing, modification and processing of forestry biomass for energy purposes, such as splitting and chipping tools, tools for cross-cutting wood, etc. The main task of the project will be the design of procedures and methods for the modification of exposed functional surfaces of the tools. Ensuring a higher quality of functional tool surfaces in the context of reducing friction and eliminating adhesion, provides a prerequisite for reducing the load on machinery equipment and thus reducing emissions and energy consumption in a given production. Analyses will be carried out on the tools - FEM analysis in order to determine the stress-strain state, on the samples analysis of the state of the material in terms of physical properties, microstructure, mechanical properties and resistance to adhesive wear in wood-metal interaction and also abrasive wear. Based on the results of the analyses carried out, innovative surface treatment procedures will be proposed
for the exposed functional surfaces to guarantee an increase in their functional lifetime. These will be applied to samples and laboratory tested by relevant test procedures. From the results of the laboratory tests, a selection will be made of the most appropriate non-conventional innovative procedures, which will be applied to the tools and tested on the equipment under forestry operating conditions. In doing so, it will be observed how the modifications in question affect the energy consumption of forestry machinery and equipment. Part of the project solution will be to ensure industrial-legal protection of the original solutions.
|
Innovative approaches to the restoration of functional surfaces by laser weld overlaying
Inovatívne prístupy pri obnove funkčných povrchov laserovým naváraním
| Duration: |
1.7.2021 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
RNDr. Džupon Miroslav PhD. |
| Annotation: | The project is focused on the restoration of functional surfaces by laser weld overlying. Innovative approaches will
be applied in the restoration of functional parts of molds for high-pressure die casting of aluminum alloys. Laser
weld overlaying technology will be used for the formation of restoration layers in order to significantly reduce the
negative impact of the introduced heat on the quality of sub-weld layers. Newly designed additional materials
based on Co, Ni, Fe with the presence of dispersed abrasion-resistant precipitates will be used. Additional
materials for laser welding will be used in the form of wires made of Uddeholm Dievar and Maraging. For better
variability of the chemical composition, powder additives based on Fe with the addition of B, Ti, Nb, Mo, V and W
will also be used to create weld overlays. The optimal method of heat treatment of weld overlays will be proposed.
Research will further focus on microtexturing the surface of molded parts by low-energy laser radiation using
innovative engraving surface treatment methods (LBT and EBT) in order to ensure a smooth distribution of the
separating agent on the mold surface. Experimental work will be focused on modifying the microgeometry of the
surface of new and renovated shaped parts of molds so that in the phase of "run-in of the mold" a compact layer of
the separating agent is created to increase the technological life of molds. PVD and PE-CVD technologies will be
used for this purpose. |
Composite biomaterials with complex natural additives
Kompozitné biomateriály s komplexnými prírodnými aditívami
| Duration: |
1.7.2021 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
Ing. Medvecký Ľubomír DrSc. |
| Annotation: | The project is focused on the research of modified and new types of composite biocements with complex natural additives, which will self-hardened as well as injectable according to the need for use and will be characterized by high bioactivity and biocompatibility with bone tissue. In principle, the preparation of composite biocement systems is applied in combination with complex natural additives without specific extraction of selected groups of compounds from natural products what preserves the simplicity of preparation, cheap final form of biomaterial as well as the "green principle" of their nature, composition and response. Composite biocements will be used in
orthopedics (treatment of bone and osteochondral defects and fractures) as well as in the reconstruction of bone injuries in the facial part or as filling cements in dentistry. |
Composite systems based on bioelastomers and bioactive phases
Kompozitné systémy na báze bioelastomérov a bioaktívnych fáz
| Duration: |
1.1.2021 - 31.12.2023 |
| Program: |
VEGA |
| Project leader: |
RNDr. Sopčák Tibor PhD. |
| Annotation: | As the population continues to grow, so does the number of surgeries in various fields of medicine, including reconstructive surgery and regenerative medicine. This implies a need for a research of such biomaterials that will closely mimic the structure of the original tissue. The present project will aim to address the issues related to the currently used bone implants, i.e. low mechanical properties with the simultaneous maintenance of their biological properties. The production of composite systems based on bioelastomers and bioactive phases in the form of bioceramics or cements is expected to take advantage of both components with the outstanding bioactivity, self-setting and handling properties of cements along with excellent elastic properties, mechanical reinforcement and improved biodegradation offered by elastomers. A great emphasis will be given on the production of glycerol carboxylate polyesters and their effective incorporation into the bioactive matrix. |
Modelling of phase diagram and thermodynamic properties of the systems for high temperature applications
Modelovanie fázových diagramov a termodynamických vlastnosti systémov pre vysoko teplotné aplikácie
| Duration: |
1.1.2021 - 12.12.2023 |
| Program: |
VEGA |
| Project leader: |
RNDr. Homolová Viera PhD. |
| Annotation: | The project focuses on the study of phases, phase equilibria and phase diagrams in systems for
high-temperature applications. The aim is to refine the uncertainty of phase diagrams and investigate unknown
parts of selected binary systems by experimental methods of differential thermal analysis, X-ray diffraction and
electron microscopy and then to model their phase diagrams and thermodynamic properties using the
semi-empirical Calphad-method. The subject of the study are binary systems with iridium. Iridium is an element
which, due to its thermodynamic properties, is very interesting for use in the aerospace industry and due to its
high corrosion resistance even at very high temperatures, it may potentially be suitable for use as part of gas
turbine materials. The results of the project will allow to extend the possibility of designing new materials for
high-temperature use by computational methods without the need for time-consuming experimental testing. |
Nanomechanical testing and deformability of high-entropy ultra-high temperature ceramics
Nanomechanické skúšanie a deformovateľnosť vysokoentropických ultra vysokoteplotných keramických materiálov
New high-entropy ceramic materials for advanced applications
Nové vysokoentropické keramické materiály pre pokročilé aplikácie
Preparation of hybrid composites and characterization of structure and magnetic properties at a wider temperature range
Príprava hybridných kompozitných materiálov a charakterizácia štruktúry a magnetických vlastností v širšom intervale teplôt
| Duration: |
1.1.2020 - 31.12.2023 |
| Program: |
VEGA |
| Project leader: |
RNDr. Birčáková Zuzana PhD. |
| Annotation: | The project is focused on the preparation of new progressive composites, on the research of the structure and magnetic properties of materials composed of ferromagnetic, ferrimagnetic and insulating components. The resulting solid composite material will be formed by compression. The research will focus on explaining the influence of ferromagnetic and ferrimagnetic magnetic structure of composites and magnetic interactions on electromagnetic properties under different physical conditions. The aim is to determine the relationships between magnetic parameters, particle size, thickness of ferromagnetic and other insulating coatings and to prepare a hybrid composite material with very
good magnetic properties. The research results have the ambition to expand the application potential of composite materials for electrical engineering. |
Advancement and support of R&D for "Centre for diagnostics and quality testing of materials" in the domains of the RIS3 SK specialization
Rozvoj a podpora výskumno – vývojových aktivít Centra pre testovanie kvality a diagnostiku materiálov v oblastiach špecializácie RIS3 SK
-
Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine
-
Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine
Structure and application properties of intermetallic alloys
Štruktúra a aplikačné vlastnosti intermetalických zliatin
Structure and poroiperties of reactively sintered high-entropy metal diborides
Štruktúra a vlastnosti reaktívne spekaných vysoko entropických kovových diboridov
Stufdy of the influence of sdamples preparation conditions of micrometric dimensions by focused ion beam on their mechanical properties
Štúdium vplyvu podmienok prípravy vzoriek mikrometrických rozmerov fokusovaným iónovým zväzkom na ich mechanické vlastnosti
Thermoelectric material Ag2S as green converter of heat from human body into electricity
Termoelektrický materiál Ag2S ako ekologický konvektor tepla ľudského tela na elektrinu
| Duration: |
1.1.2022 - 31.12.2023 |
| Program: |
SRDA |
| Project leader: |
doc. Ing. Saksl Karel DrSc. |
| Annotation: | A carbon neutral society demands the development of efficient and energy saving technologies. Efficient thermoelectric devices have great potential to convert the waste heat from power plants, automotive engines, and
industrial processes into fruitful electricity. Another natural source of heat is our body. As the heat released by the human body is given for “free” wearable renewable energy generators (or harvesters) have potential to trigger revolution in the electronics industry in 21st century. For example, bendable, scalable, portable, and lightweight thermoelectrics can in future sourced flexible displays, medical image sensors, smart wearables, and large-area epapers to name a few. To date, state-of-the-art thermoelectrics is based on inorganic semiconductors that afford high electron mobility but lack in mechanical flexibility. By contrast, organic materials are amply flexible but low in electrical mobility and power output; the inorganic-organic hybrid design is a viable material-level option but has critical device-level issues for practical application. In flexible full-inorganic devices made of such Ag2S-based materials, high electrical mobility yielded a normalized maximum power density up to 0.08 W•m-1 near room temperature under a temperature difference of 20 K, orders of magnitude higher than organic devices and organic-inorganic hybrid devices. These results promised an emerging paradigm and market of wearable thermoelectrics. |
Solid ionic conductors: preparation, properties and potential application in all-solid-state lithium batteries.
Tuhé iónové vodiče: výroba, vlastnosti, perspektíva využitia v lítiových batériách s tuhým elektrolytom.
Hard and tough boride and nitride-based coatings prepared by advanced PVD techniques
Tvrdé a húževnaté vrstvy na báze boridov a nitridov pripravené progresívnymi PVD technikami
| Duration: |
1.7.2022 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
doc. RNDr. Lofaj František DrSc. |
| Annotation: | The project aims at the increase of fracture toughness of thin hard PVD boride- and nitride based coatings deposited using advance sputtering techniques including HiPPMS and HiTUS while keeping their high thermal and oxidation resistance by means of employment of the intrinsic and extrinsic factors. The main idea is based on a „new design“ of hard coatings including simultaneous contribution from the modification of chemical composition, morphology and structure of the coatings via exploitation of the potential of structure control provide by HiPPMS and HiTUS technologies with high level of sputtered material ionization and high density of working gas plasma, respectively. Both technologies result in the coatings with high densities and allow us to modify the nanostructures, size of the nanocrystallites, modify chemical composition etc. and subsequently, to obtain different physical properties of the coatings. The activities of the project are focused on the development of transition metals-based boride and nitride coatings with improved mechanical (hardness > 30 GPa) and tribological properties (coefficient of friction < 0.3) for extreme conditions (> 1000°C, aggressive oxidation environment, etc.). The main effort will be oriented toward the elimination of the main drawbacks of hard coatings, i.e. toward the increase of their inherently low fracture toughness and increase of their oxidation resistance without hampering their hardness via understanding of the mechanisms of nanostructure evolution, decomposition of the high entropy multicomponent solid solutions, formation of stable phases and their relationships to mechanical and tribological properties. The research activities include also the correlations of the experimental results with the ab initio predictions based on theoretical models related to atomic structure and electronic configuration of the studied systems. |
Influence of microwave radiation on the structure and properties of powder functional materials
Vplyv mikrovlnného žiarenia na štruktúru a vlastnosti práškových funkčných materiálov
| Duration: |
1.1.2021 - 31.12.2023 |
| Program: |
VEGA |
| Project leader: |
Ing. Bureš Radovan CSc. |
| Annotation: | The subject of research is the interaction of MW radiation with functional powder materials with specific electrical and magnetic properties, especially soft magnetic composites (SMC). The aim of the project is to contribute to the explanation of the mechanisms of densification of the MW processed structure of powder composites based on the primary ferromagnetic component and the secondary dielectric component distributed in the volume of the composite as a network. The structural characteristics will be correlated with the electromagnetic and mechanical properties of MW sintered materials in order to contribute to the explanation of changes in the functional properties induced by the interaction of MW radiation with ferromagnets and dielectrics. It is assumed that fundamental knowledge about the relations of process parameters, structure and physical properties will contribute to the application possibilities of MW PM processing. The contribution can also be expected in the field of structural design of SMC. |
Research and development of bioresorbable materials for implants on the based of Zn and Mg
Výskum a vývoj bioresorbovateľných materiálov na báze Zn a Mg
| Duration: |
1.1.2023 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
Ing. Ballóková Beáta PhD. |
| Annotation: | The project aims are to prepare and investigate the properties of new types of metal alloys, which will be made of bioabsorbable elements based on Zn, Ca and Mg prepared by intensive plastic deformation, analysis of micromechanisms of failure in relation to microstructure and basic mechanical and technological properties. To improve the mechanical and chemical properties, these alloys will be microalloyed with elements: Mn, Li, and Ag.
The studied elements are naturally present in the human body, and thus the body has natural biocompatibility towards them. Tribological parameters, local mechanical properties as well as electrochemical properties will also be investigated. Studies in the field of the development of corrosion-resistant bioresorbable alloys suggest that this combination of mechanical and chemical properties can be achieved by the appropriate addition of microalloys and the appropriate thermo-mechanical treatments of the alloys. |
Research and development of new high - entropy alloys for efficient hydrogen storage in energy applications
Výskum a vývoj nových vysokoentropických zliatin určených na efektívne uskladnenie vodíka v energetických aplikáciách
| Duration: |
1.7.2021 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
doc. Ing. Saksl Karel DrSc. |
| Annotation: | The presented project aims to development and research of metal hydride materials of the latest generation – highentropy
alloys, which report the highest volumetric storage capacity of hydrogen among all materials used so far.
We intend to utilize these materials in metal hydride tanks of hydrogen compressors, which are being developed in
Slovakia by the project cooperating organisation - FME TUKE.
In June 2020, the European Commission presented the Union's hydrogen strategy, which states that hydrogen and
the hydrogen economy are among the key technologies for the future of industry in the EU.
The presented project aims to meet the goal of efficient and safe hydrogen storage. Up to date studies show the
highest volumetric hydrogen storage capacity of 150 kg/m3, out of all conventional alloys, is reached by Mg2FeH6
metal hydride. In 2016, Sahlberg et al. in a publication entitled "Superior hydrogen storage in high entropy alloys"
confirmed that the high-entropy alloy TiVZrNbHf can store an incredible "superior" of 210 kg/m3 of hydrogen in its
structure with a ratio of hydrogen atoms to metal (H / M) 2.5. However, the problem of the alloy is its relatively high density of 7.81 g/cm3, which makes it too high for transport applications. In the project, we will design, prepare and
fully characterize a series of completely new high-entropy materials with a low density <7 g/cm3. Materials that
meet the targets of absorption capacity (> 2 wt% and> 220 kg H2/m3), low desorption temperature (<140C) and
high cyclic absorption / desorption stability (> 1000 cycles with capacity drop of less than 10%) we will patent. The
alloys will also be tested in a hydrogen compressor, which will undoubtedly contribute to the further evaluation of
the outputs of this project. In the project we will use our long-term knowledge and expertise in the design,
preparation and characterization of high-entropy alloys. |
Research and development of a prototype of a low-pressure refuelling station for refuelling metal hydride equipment with green hydrogen
Výskum a vývoj prototypu nízkotlakovej čerpacej stanice pre zásobovanie metalhydridových zariadení zeleným vodíkom
| Duration: |
1.7.2022 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
doc. Ing. Saksl Karel DrSc. |
| Annotation: | The purpose of the project is the research, development and designing of a prototype of a low-pressure refuelling station intended for refuelling mobile technical equipment for hydrogen storage at low pressure in metal hydrides (MH). The existing infrastructure for hydrogen production that applies a renewable energy source in water electrolysis will be used, while the green hydrogen generated in the process of electrolysis will be stored in stationary tanks with an absorption-based storage system. A strategic objective of the project is to interconnect the system for green hydrogen production operated in the island mode, installed at the Centre for Hydrogen Technologies at the Faculty of Mechanical Engineering, with a system for stationary low-pressure hydrogen storage in metal hydrides, which will then facilitate refuelling mobile MH equipment using a newly developed prototype of a refuelling stand. An important milestone in the project is the research into a design of stationary tanks with an inbuilt thermal management system. Developing the thermal management system is crucial for operational safety and for increasing the efficiency of hydrogen storage while considering the overall reduction of energy consumption in the process of hydrogen absorption and subsequent desorption. The research of novel MH alloys, while respecting equilibrium pressures at predefined operating temperatures, is therefore a primary input parameter for designing the thermal management system. The use of MH alloys for increasing hydrogen pressure eliminates the risks related to the compression process when compared to mechanical compression. The thermal management system will also include a system for cooling hydrogen during refuelling; hence, reduction of the time of refuelling MH tanks for consumers will be verified. |
Research of the resistance and prevention of modern structural materials against hydrogen embrittlement
Výskum odolnosti a prevencie moderných konštrukčných materiálov voči vodíkovému krehnutiu
| Duration: |
1.1.2022 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
Ing. Falat Ladislav PhD. |
| Annotation: | The aim of the project is to investigate the susceptibility to hydrogen embrittlement (HE) of structural metallic
materials based on Fe (i.e. modern grades of carbon and alloy steels) as well as selected alloys or composites
based on non-ferrous metals (e.g. Al, Cu, Mg, etc.) by the method of electrochemical hydrogen charging and
mechanical testing in laboratory conditions. The microstructural conditionality of hydrogen embrittlement will be investigated on defined material states with characteristic microstructural parameters (grain size, phase composition, etc.). The possibilities of HE prevention will be investigated using available methods of surface modification (layers and coatings, surface alloying, formation of gradient structures, etc.) of basic materials in
order to apply a barrier effect against hydrogen permeability. |
Research and development of highentropy alloys for efficient hydrogen storage
Vývoj a výskum vysokoentropických zliatin určených na efektívne uskladnenie vodíka
| Duration: |
1.1.2022 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
doc. Ing. Saksl Karel DrSc. |
| Annotation: | The aim of this project is the development and research of high-entropy alloys - HEA whose primary function will be in hydrogen storage. Commercial use of H2 relies on its efficient and safe storage. One of the most efficient ways to store H2 is chemically bond it to an alloy lattice in a form of metalhydrides. The TiVZrNbHf alloy is capable of storing far greater amounts of H2 up to 210 kg.m-3. The problem of the alloy is its relatively high density of 7.81 g.cm-3, for transport applications. Much higher mass storage capacities are expected to be achieved with other HEA, consisting of lighter elements. In the project, we will design, prepare and fully characterize a series of new HEA with a low density of <7 g.cm-3. Materials that meet the targets of absorption capacity (>2wt% and>220 kgH2/m3), low desorption temperature <140°C and high cyclic absorption/desorption stability (>1000 cycles with a capacity drop of less than 10%). In the project, we will use our knowledge and expertise in the design and preparation of HEA. |
Development of innovative methods of processing and joining electrical steels for high-efficiency applications in e-mobility
Vývoj inovatívnych spôsobov spracovania a spájania elektrotechnických ocelí pre vysokoúčinné aplikácie v e-mobilite
| Duration: |
1.7.2022 - 31.12.2025 |
| Program: |
SRDA |
| Project leader: |
Mgr. Petryshynets Ivan PhD. |
| Annotation: | The global trend to reduce emissions has forced car producers to think about other types of propulsion than
internal combustion engines. A significant direction in which the world is currently moving in this area is the
replacement of internal combustion engines with electric car drives. This fact has led and it is still leading to a great
expansion in the production of car batteries, which would allow the longest possible range of electric cars. Besides
the capacity of the batteries, the efficient use of stored energy in electric vehicle drives has a significant effect on
the range of cars as well. This project aims to reduce losses and increase the efficiency of electric drives.
Increased efficiency and reduced losses can be achieved by reducing the losses in the materials of the rotors and
stators of rotating electrical machines, but also by reducing the losses that occur when changing the properties of the source material during cutting and subsequent joining into rotor and stator bundles. Experimental research will focus on optimizing the microstructure and texture of various grades of electrical sheets in order to minimize electromagnetic losses and optimize the conditions for the production of rotor and stator bundles by cutting and subsequent joining. The optimization of the conditions of joining electrical sheets of various chemical and microstructural concepts will be the expected output of the project. The magnetic properties of the joined electrical sheet cut-outs will be compared with the magnetic properties of the lamellas produced by electrospark cutting. |
Unconventional thermo-mechanical technology development of final processing of isotropic electrical steels.
Vývoj nekonvečného termo-mechanického postupu finálneho spracovania izotropnych elektrotechnických ocelí
Development of novel 3D materials for post lithium ion batteries with high energy density
Vývoj nových 3D materiálov pre post Li-iónové batérie s vysokou energetickou hustotou
| Duration: |
1.7.2021 - 31.12.2024 |
| Program: |
SRDA |
| Project leader: |
Ing. Ballóková Beáta PhD. |
| Annotation: | The overall objective of NOVEMBER is to prepare and characterize new materials and concepts with self-healing functionalities integrated within the battery cell. These new composite 3-D materials will enable a variety of critical features including fail-safe and self-healing technologies to improve the battery performance, and greatly extended lifetimes. Special emphasis will be on in-operando electrochemical measurements using impedance spectroscopy and structural measurements. Validation of new materials will be done in small laboratory prototypes. This small prototypes are important in order to demonstrate scalability to battery cell production processes. To reach this goal, NOVEMBER has identified three specific objectives: 1. Development of novel high entropy oxides and sulfur based materials with self-healing functionalities. 2. Development of new physico-chemical in-operando techniques and solutions for monitoring of agign and degradation mechanisms 3. Validation and exploitation of the developed materials in prototypes. In summary, this project combines materials research advances and sophisticated in-operando technology development in order to obtain new materials for post Li -ion batteries with enhanced life-time and performances. |
Development of new bioresorbable alloys for intracorporeal implants
Vývoj nových bioresorbovateľných zliatin pre vnútrotelové implantáty
| Duration: |
1.7.2021 - 30.6.2024 |
| Program: |
SRDA |
| Project leader: |
Ing. Molčanová Zuzana PhD. |
| Annotation: | The main goal of submitted project is to develop the new bioresorbable alloys Ca-Mg-Zn-NN and Ca-Mg-Sr-NN
with controlled rate of biodegradation (NN are solid solution strengthening and stabilizing elements). Developed alloys will be preferentially dedicated to fabrication of intracorporal implants for bone tissue engineering field. Members of project research team are highly focused on the investigation of these alloys systems since 2014. Essential and logical continuity of research activities are moving towards to experimental outputs into medical practice. However, this requires a large-scale investments of research capabilities to enhance the plastic deformability of alloys, while maintain their excellent strength properties and slow dissolution rate. Taking into account that healing of traumatic injuries needs different time of implant mechanical support, the great ambition of the project is to prepare alloys with possibility of controlling their dissolution rate. Another research point with huge
potential of success is handling and mastering of 3D printing of well -defined intracorporal implants from proposed alloys. One of the final research tasks will be in-vivo testing of implants dissolution in the environment of animals bone tissue and continuous monitoring of their degredation rate. Several state-of-the-art experimental techniques, such as HR-TEM microscopy or experiments using synchrotron and neutron diffraction techniques, will be used to study the atomic structure and microstructure of materials to meet the project objectives. Modern techniques of selective laser sintering and/or melting will be used for the production of final implants. The achieved outputs of the project research programme will be adapted by contracted private company Biomedical Engineering s.r.o. and displayed into clinical practice. |
Development of new compositionally-complex ceramics for extreme applications
Vývoj nových keramických materiálov komplexného zloženia pre extrémne aplikácie
Technology development of surface nanostructuring of new generation tool steel for increasing the quality of low CO2 - emission cars hybrid bodies stampung using high - strength TRIP - assisted sheet metal
Vývoj technológie prípravy povrchových nano-štruktúr nástrojových ocelí novej generácie za účelom zvyšovania kvality lisovania hybridných karosérií automobilov s nízkymi CO2 - emisiami z vysokopevných TRIP - ocelí
Development of high-temperature composite materials based on borides and carbides with the addition of graphene platelets prepared by progressive sintering methods
Vývoj vysokoteplotných materiálov na báze boridov a karbidov s prídavkom grafénových platničiek pripravených progresívnymi metódami spekania
The total number of projects: 37
