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Information Page of SAS Organisation

Project

Institute of Materials Research

International Projects

Preparation of ZnTiO, ZnO and (YGd)203: Eu ceramic with conventional and Pulse electric current sintering technique

Príprava ZnTiO3, ZnO and (YGd)2O3: Eu keramiky konvenčným spekaním a spekaním pomocou pulzného elektrického prúdu

Duration: 1. 1. 2023 - 31. 12. 2024
Evidence number:SASA-SAS-21-01
Program: Mobility
Project leader: Ing. Szabó Juraj PhD.

STRENGTHECS - Strengthening and plasticity of high-entropy ultra-high temperature carbides

Spevnenie a plasticita vysokoentropických ultra vysokoteplotných karbidov

Duration: 1. 7. 2021 - 30. 6. 2024
Evidence number:H2020-MSCA-IF
Program: Iné
Project leader: MSc. Csanádi Tamás PhD.

DuplexCER - High performance duplex ceramics for efficient maschining of nickel superalloysd

Vysoko odolná duplexná keramika pre efektívne obrábanie niklových superzliatin

Duration: 1. 6. 2022 - 31. 5. 2025
Evidence number:M-ERA.NET 3/2021/295/DuplexCER
Program: ERANET
Project leader: prof. RNDr. Dusza Ján DrSc.

Development and characterization of bioceramic systems modified by thermosetting biopolymers

Vývoj a charakterizácia biokeramických systémov modifikovaných termosetovými biopolymérmi

Duration: 1. 1. 2023 - 31. 12. 2024
Evidence number:HAS-SAS-2022-01
Program: Mobility
Project leader: RNDr. Sopčák Tibor PhD.
Annotation:Development of biomaterials consisting of bioceramics as matrix enriched with various polymers is a long-standing challenge when preparing synthetic bone substitutes. The combination of both materials can serve several purposes: the inorganic ceramic phase ensures the outstanding bioactivity, osteoconductivity and osteoinductivity, while the polymer component is responsible for the enhanced mechanical reinforcement and improved biodegradation. In view of above, the present project will be oriented towards the production and characterization of bioceramic systems modified with a thermoset biopolymer coating. A great emphasis will be given on the synthesis of polyol citrate thermosetting polymers and their effective incorporation on the surface of bioceramic matrix. Beside that, a detailed analysis of the effect of polymer addition on the microstructural, phase, mechanical, and in-vitro cellular properties of bioceramic systems will be thoroughly studied using several characterization techniques. It is anticipated, that our results should expand knowledge in the field of polymer/bioceramic composites and will provide useful directions in their further design for potential use in biomedicine.

H2MobilHydride - Developoment and processing of advanced metal hydride composites with specific microstructure properties for mobile hydrogen storage applications

Vývoj a spracovanie pokročilých metalhydridových kompozitných materiálov pre uskladnenie vodíka určených pre mobilné aplikácie

Duration: 1. 5. 2023 - 30. 4. 2026
Evidence number:M-ERA.NET 3/2022/235/H2MobilHydride
Program: ERANET
Project leader: RNDr. Nigutová Katarína PhD.
Annotation:The innovation goals of this project are to provide a novel metal hydride composite offering hydrogenation capacity close to Mg alloys, faster kinetics, higher dehydrogenation capacity, and limited material degradation per cycle. The material will be based on the concept of high entropy alloy with the addition of catalysts and will be produced not only in the conventional powder form, but also as thin sheets and bulk materials. The project will improve the fundamental understanding of the mechanisms governing the hydrogenation and high-temperature behavior of HEA-based composites and also provide a functional model of a new composite material for hydrogen storage, followed by a technology for its fabrication.

V4-JAPAN - Development of Advanced Magnesium Alloys for Multifunctional Applications in Extreme Environments

Vývoj pokročilých horčíkových zliatin pre multifunkčné aplikácie v extrémnych prostrediach

Duration: 1. 11. 2021 - 31. 10. 2024
Evidence number:JP39421
Program: International Visegrad Fund (IVF)
Project leader: doc. RNDr. Lofaj František DrSc.

EHSAL - Enhancement of Hydrogen Storage Properties of AlTiVCr Light Weight High Entropy Alloys (HEA) by Ti3C2 Mxene and Several Plastic Deformation

Zvýšenie uskladňovacej schopnosti vodíka v ľahkých vysoko-entropických zliatinách (HEA) typu AlTiVCr prídavkom Ti3C2 Mxenu a veľkej plastickej deformácie

Duration: 1. 4. 2022 - 31. 3. 2025
Evidence number:EIG CONCERT- Japan/2021/215/EHSAL
Program: European Interest Group (EIG) CONCERT-Japan
Project leader: doc. Ing. Saksl Karel DrSc.
Annotation:Recently discovered AlTiVCr high entropy alloy (HEA) exhibits about 70x increase in equilibrium pressure, ~20 kJ/mol H2 decrease in desorption enthalpy (ΔH) relative to the benchmark TiVZrNbHf HEA possessing H/M ratio > 2 with 2.7 wt % hydrogens at 53 bar H2. The AlTiVCr HEA desorption enthalpy ΔH is ~40 kJ/mol and H/M ratio ~1. Since AlTiVCr alloy includes lighter-weight elements relative to earlier studied refractory HEAs, it is envisaged that AlTiVCr can be a potential lightweight metal hydride for future hydrogen storage application if its H/m ratio and hydrogenation/dehydrogenation kinetics can be improved. So far, the addition of Mxene (Ti3C2) as catalyst and nanosizing exhibited a significant influence on the kinetics and hydrogenation capacity of Mg metal hydrides independently. Therefore, in this study, we aim to develop a lightweight metal hydride composite of AlTiVCr HEA by the combination of three concepts of HEA, Mxenes (Ti3C2 Mxene) and nanosizing by high-pressure torsion (HPT). The influence of Mxene and deformation heterogeneities will be investigated and will be tailored for achieving lower ΔH, higher H/M ratio and faster kinetics.

National Projects

Application of innovative nanocatalysts and DFT simulations for efficient hydrogen production

Aplikácia inovatívnych nanokatalyzátorov a DFT simulácií pre efektívnu výrobu vodíka

Duration: 1. 1. 2021 - 31. 12. 2024
Evidence number:1/0095/21
Program: VEGA
Project leader: RNDr. Kupková Miriam CSc.

Lead-free ferroelectric materials for energy storage applications

Bezolovnaté feroelektrické materiály pre efektívne uskladňovanie elektrickej energie

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0034/23
Program: VEGA
Project leader: RNDr. Kovaľ Vladimír DrSc.
Annotation:The proposed project is devoted to the research and development of novel relaxor-type ferroelectric ceramics. Relaxor ferroelectrics (RFEs) are receiving considerable attention from materials scientists due to their unique properties for energy storage applications. However, dielectric capacitors made of RFEs, although presenting faster charging/discharging rates and better stability compared with supercapacitors or batteries, are limited in applications due to their relatively low energy density. The main goal of the project is to design and prepare a lead-free RFE ceramic material with high energy storage density and efficiency. A series of structural modifications using cationic substitution on a RFE material will be carried out to enhance the energy storage capabilities of the ceramics. The effect of the chemical substitution on ferroelectric phase transitions and formation of polar nanoregions will be investigated in relation to the compositional disorder and stability of antiferroelectric state.

DEBIORE - Degradable metallic biomaterials with controlled drug release

Degradovateľné kovové biomateriály s riadeným uvoľňovaním liečiv

Duration: 1. 7. 2021 - 31. 12. 2024
Evidence number:APVV-20-0278
Program: APVV
Project leader: RNDr. Kupková Miriam CSc.

SASPRO2 - Dual-phase high-entropy ultra high temperature ceramics

Dvojfázová vysokoentropická ultravysokoteplotná keramika

Duration: 1. 10. 2021 - 30. 9. 2024
Evidence number:1152/01/01
Program: SASPRO
Project leader: Ing. Naughton Duszová Annamária PhD.
Project web page:https://saspro2.sav.sk/

HERO - 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
Evidence number:APVV-20-0299
Program: APVV
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.

Experimental development of new metal - ceramic nano - composites for friction applications using metal wastes from machining operations.

Experimentálny vývoj nových kovo-keramických nano-kompozitov pre trecie aplikácie s využitím odpadov z obrábamia kovov

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0113/23
Program: VEGA
Project leader: Ing. Podobová Mária PhD.
Annotation:The aim of the project is to investigate the properties of nano-composites with a metal matrix based on Fe-Cu with the addition of SiC, ZrO2, Al2O3 and graphene and with the addition of metal wastes from conventional machining operations such as Al, CuSn, stainless steel, Ti, MgAl etc. The composites will be prepared by the method of dry mixing in a 3D turbula, attritor, the method of high-energy ball-mill in ethanol, the method of rapid sintering using a pulsed electric current in a vacuum under the simultaneous action of uniaxial pressure (SPS "spark plasma sintering"). The results will be mapping the properties of prepared nano-composites, such as hardness, strength, abrasion resistance, thermal and structural stability (DSC / TG), coefficient of friction and wear and selection of nano-composites with the best possible combination of individual components with respect to the resulting properties (stability, carrying-off heat weight reduction, coefficient of friction, wear rate).

FUCO - 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
Evidence number:APVV-20-0072
Program: APVV
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.
Project web page:http://www.imr.saske.sk/project/fuco/index.html

Gradient micro / nano composites with Al matrix prepared by pulsed electric current sintering

Gradientné mikro/nano kompozity s Al matricou pripravené spekaním pomocou pulzného elektrického prúdu

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:VEGA 2/0114/23
Program: VEGA
Project leader: Ing. Puchý Viktor PhD.
Annotation:The project is focused on the experimental research of the new progressive gradient micro / nano composites with aluminum matrix reinforced with ceramic particles and carbon nanoparticles - graphene nanoplatelets (GNPs), applicable in the automotive, aerospace and defense industries. Composite powders based on Al alloys with different contents of hard ceramic particles and GNPs will be prepared, which will be homogenized by mixing and surface activated by grinding in a ball mill in ethanol. The powders thus prepared will be deposited and layered (geometrically, gradient arranged (FGM)) in a hexagonal graphite mold and then pulsed electric current sintered in a vacuum in "Spark Plasma Sintering" furnace (SPS). Mechanical and ballistic properties will be analyzed and correlated with microstructure, texture, fractographic analysis and the content of added particles and additives.

CAMBIOMAT - Chorioallantoic membrane - in vivo model for study of biocompatibility of materials

Chorioalantoická membrána - in vivo model pre štúdium biokompatibility materiálov

Duration: 1. 7. 2021 - 30. 6. 2025
Evidence number:APVV-20-0073
Program: APVV
Project leader: Ing. Medvecký Ľubomír DrSc.

INNOVATTOOLS - 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
Evidence number:APVV-21-0180
Program: APVV
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.

Ino-Clad - 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
Evidence number:APVV-20-0303
Program: APVV
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.

VEGA - -

Kalcium fosfátové biocementy s biologicky aktívnou kvapalnou zložkou

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0032/23
Program: VEGA
Project leader: MVDr. Giretová Mária PhD.

Catalysts for water splitting in membrane electrolyzers.

Katalyzátory pre elektrolýzu vody v membránových elektrolyzéroch.

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0027/23
Program: VEGA
Project leader: RNDr. Strečková Magdaléna PhD.
Annotation:Hydrogen is a flexible and clean energy carrier because it offers not only the prospect of large green electricity storage capacities, but also a wide range of industry decarbonisation. The development of hydrogen technology activities has been supported by the European Commission as "A hydrogen strategy for a climate-neutral Europe". Slovakia has developed a national hydrogen strategy and at present, the Hydrogen technology center is being established in Košice with the main concept "Power-to-Gas" using renewable energy sources. Water electrolysis appears to be the most promising technology for hydrogen production. Bimetallic phosphide nanoparticles represent future substitutes for noble-free metals and critical materials in electrolysers and fuel cells. The main challenge of this project is to reduce hydrogen production and at the same time maintain the high efficiency of water electrolysis in membrane electrolysers. The main goal of the project will be dedicated to the improvement of electrode material.

Komponat - Composite biomaterials with complex natural additives

Kompozitné biomateriály s komplexnými prírodnými aditívami

Duration: 1. 7. 2021 - 30. 6. 2024
Evidence number:APVV-20-0184
Program: APVV
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.

ADHEC - New high-entropy ceramic materials for advanced applications

Nové vysokoentropické keramické materiály pre pokročilé aplikácie

Duration: 1. 8. 2020 - 30. 6. 2024
Evidence number:APVV-19-0497
Program: APVV
Project leader: prof. RNDr. Dusza Ján DrSc.

Surface engineering of powder ferromagnetic particles and structure of soft magnetic composites

Povrchové inžinierstvo práškových feromagnetických častíc a štruktúra magneticky mäkkých kompozitov

Duration: 1. 1. 2024 - 31. 12. 2026
Evidence number:2/0099/24
Program: VEGA
Project leader: Ing. Bureš Radovan CSc.
Annotation:The project deals with SMC based on powdered ferromagnetics and electro-insulating ceramics in the form of a continuous network. The research of such materials applied in the field of energy conversion is motivated by increasing performance and efficiency, which is achieved by increasing the working frequency of magnetization. The project aims to investigate the structure of ferromagnetic and dielectric particle interfaces, their influence on the formation of microstructure and the functional properties of compacted SMC materials with a focus on the frequency stability of electromagnetic properties. The high variability of the geometrical characteristics of ferromagnetic microparticles and modifications in the distribution of ceramic nanoparticles provide a large scope for increasing the frequency stability of the functional properties of the composite. The analysis of interphases, structural discontinuities and compaction mechanisms will contribute to clarifying the evolution of electromagnetic properties.

MOSAIC - Atomic-scale controlled strengthening and plasticity of high-entropy ceramics

Spevnenie a plasticita vysokoentropickej keramiky na atómovej úrovni

Duration: 1. 9. 2023 - 31. 8. 2028
Evidence number:IMPULZ IM-2022-67
Program: IMPULZ
Project leader: MSc. Csanádi Tamás PhD.

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Štipendiá pre excelentných PhD. študentov a študentky (R1)

Duration: 1. 9. 2023 - 30. 6. 2026
Evidence number:09I03-03-V02-00013
Program: Plán obnovy EÚ
Project leader: doc. RNDr. Hvizdoš Pavol DrSc.

00061 - -

Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine

Duration: 1. 10. 2022 - 30. 9. 2025
Evidence number:09I03-03-V01-00061
Program: Plán obnovy EÚ
Project leader: Mgr. Petryshynets Ivan PhD.

00099 - -

Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:09I03-03-V01-00099
Program: Plán obnovy EÚ
Project leader: Mgr. Petryshynets Ivan PhD.

00110 - -

Štipendiá pre excelentných výskumníkov ohrozených vojnovým konfkliktom na Ukrajine -

Duration: 1. 3. 2023 - 28. 2. 2026
Evidence number:09/03-03-V01-00110
Program: Plán obnovy EÚ
Project leader: doc. RNDr. Hvizdoš Pavol DrSc.

Structure and application properties of intermetallic alloys

Štruktúra a aplikačné vlastnosti intermetalických zliatin

Duration: 1. 1. 2022 - 31. 12. 2024
Evidence number:2/0086/22
Program: VEGA
Project leader: doc. Ing. Milkovič Ondrej PhD.

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

Duration: 1. 1. 2022 - 31. 12. 2024
Evidence number:2/0137/22
Program: VEGA
Project leader: Ing. Vojtko Marek PhD.

HaTo-Coat - 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
Evidence number:APVV-21-0042
Program: APVV
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.

NEOCAR - Novel enhanced oxidation-resistant ultra-high temperature carbides

Ultra-vysokoteplotné karbidy so zvýšenou oxidačnou odolnosťou

Duration: 1. 7. 2023 - 30. 6. 2027
Evidence number:APVV-22-0493
Program: APVV
Project leader: Ing. Kovalčíková Alexandra PhD.

VEGA - -

Vplyv prídavkov Nb a V na vysokoteplotnú stabilitu a mechanické vlastnosti multikomponentných Ti-Ta-Zr-Hf-Me-N povlakov (Me= Nb, V), pripravených reakčným DC magnetrónovým naprašovaním a HiTUS technológiou

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0083/23
Program: VEGA
Project leader: Ing. Kvetková Lenka PhD.

Effect of terpene essential oils addition on the properties of biocomposites used for hard tissue recovery

Vplyv prídavku terpénových silíc na vlastnosti biokompozitov určených na regeneráciu tvrdých tkanív

Duration: 1. 1. 2024 - 31. 12. 2026
Evidence number:2/0039/24
Program: VEGA
Project leader: RNDr. Sopčák Tibor PhD.
Annotation:Development of biomaterials with antimicrobial properties is a highly topical issue to prevent the risk of infections after surgery. Terpenes are natural bioactive compounds present in essential oils with a significant therapeutic effects. They exhibit excellent antibacterial, antifungal and anti-inflammatory properties. However, disadvantages are high volatility, hydrophobicity and intense odor which hampers their direct application. Incorporation of essential oils into polymers is an effective method to increase hydrophilicity and stability of system with the simultaneous reducing of volatility. The aim of the project will be the stabilization of terpenes through a polymeric elastomer encapsulation, preparation and characterization of biocomposites consisting of matrix (biocement, bioceramic) modified with polymer coatings. The main task will be the production of biomaterial with better physico-chemical properties compared to individual components with potential application as hard tissue replacements.

BIORES - 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
Evidence number:2/0039/23
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.

HydroHEA - 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
Evidence number:APVV-20-0205
Program: APVV
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.

PNMHCS - 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
Evidence number:APVV-21-0274
Program: APVV
Project leader: RNDr. Nigutová Katarína PhD.
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
Evidence number:2/0072/22
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.

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Vytváranie vezikúl na báze fosfolipidoiv sd cieľom riadeného uvoľňovania vitamínu K

Duration: 1. 1. 2024 - 31. 12. 2024
Program: Vnútroústavné
Project leader: Ing. Štulajterová Radoslava PhD.

Development and optimization of joining methods and unconventional heat treatment procedures of joining segments of stators and rotors of high-strength FeSi steels.

Vývoj a optimalizácia metód spájania a nekonvenčných postupov tepelného spracovania spojených segmentov statorov a rotorov vysoko-pevných FeSi ocelí.

Duration: 1. 1. 2024 - 31. 12. 2026
Evidence number:VEGA 2/0092/24
Program: VEGA
Project leader: Mgr. Petryshynets Ivan PhD.
Annotation:The project is focused on experimental research of the optimization of destructive and innovative non-destructive procedures for joining segments of different qualities of high-strength electrical steels in the cores of electrical machines. The jointing procedures proposed by us in combination with additional mechanical processing of sheets and subsequent unconventional thermal treatment of rotor and stator bundles aim to optimize the microstructure and texture not only of the lamellae themselves but also in the area of their joints to achieve the formation of a coarse-grained microstructure with preferred cubic {001}and Goss's {011}<001> texture. The magnetic properties of the join press clippings in the form of silicon steel toroids will be compared with the magnetic properties of the reference samples. A sequence of structure-forming processes will be proposed to achieve the set optimal conditions for joining the lamellae into bundles with the aim of minimizing magnetic losses.

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
Evidence number:VEGA 2/0039/22
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.

DINOMESEM - 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
Evidence number:APVV-21-0418
Program: APVV
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.

Development of ceramic nanofibers based on metals obtained from the waste recycling and prepared by needle less electrospinning.

Vývoj keramických nanovlákien na báze kovov získaných z recyklácie odpadov technológiou elektrostatického zvlákňovania

Duration: 1. 1. 2023 - 31. 12. 2025
Evidence number:2/0080/23
Program: VEGA
Project leader: Ing. Múdra Erika PhD.

NOVEMBER - 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
Evidence number:APVV-20-0138
Program: APVV
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.

BiAll-2 - Development of new bioresorbable alloys for intracorporeal implants

Vývoj nových bioresorbovateľných zliatin pre vnútrotelové implantáty

Duration: 1. 7. 2021 - 30. 6. 2024
Evidence number:APVV-20-0068
Program: APVV
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.

Com-Cer - Development of new compositionally-complex ceramics for extreme applications

Vývoj nových keramických materiálov komplexného zloženia pre extrémne aplikácie

Duration: 1. 7. 2022 - 30. 6. 2026
Evidence number:APVV-21-0402
Program: APVV
Project leader: Ing. Kovalčíková Alexandra PhD.

Projects total: 46