Contacts
Intranet
SK
International
| LightMat4Space – Materiál pre vesmírne aplikácie na báze ľahkého nanokryštalického hliníka (modelovanie a verifikácia technológie) | |
| Leightweight nanocrystalline aluminium based material for space applications (modeling and technology verification) | |
| Program: | ERANET |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | The aim of the proposed project is to develop lightweight structural material based on nc-Al with deposited gradient hydrogenated C-coating with high wear and contact fatigue resistance under cryogenic conditions for space applications (e.g. gear boxes in extraterrestrial vehicles). The originality of the main idea of the project is in the combination of a novel lightweight and high strength Core/Shell Precipitate (C/S) hardened nc-Al alloys with C-coatings which will result in the improvement of wear and fatigue resistance of the alloy in cryogenic conditions and ultrahigh vacuum. |
| Duration: | 1.10.2015 – 30.9.2017 |
| HANCOC – Tvrdé nanokompozitné povlaky | |
| Hard nanocomposite coatings | |
| Program: | FP7 |
| Project leader: | prof. RNDr. Dusza Ján, DrSc. |
| Duration: | 1.1.2009 – 31.12.2011 |
National
| 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 | |
| – | |
| Program: | VEGA |
| Project leader: | Ing. Kvetková Lenka, PhD. |
| Duration: | 1.1.2023 – 31.12.2025 |
| HaTo-Coat – Tvrdé a húževnaté vrstvy na báze boridov a nitridov pripravené progresívnymi PVD technikami | |
| Hard and tough boride and nitride-based coatings prepared by advanced PVD techniques | |
| 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. |
| Duration: | 1.7.2022 – 30.6.2025 |
| Štúdium vplyvu podmienok prípravy vzoriek mikrometrických rozmerov fokusovaným iónovým zväzkom na ich mechanické vlastnosti | |
| Stufdy of the influence of sdamples preparation conditions of micrometric dimensions by focused ion beam on their mechanical properties | |
| Program: | VEGA |
| Project leader: | Ing. Vojtko Marek, PhD. |
| Duration: | 1.1.2022 – 31.12.2024 |
| FotDekont – Progresívne fotokatalytické materiály pre biologickú a chemickú dekontamináciu | |
| – | |
| Program: | Other projects |
| Project leader: | Mgr. Shepa Ivan, PhD. |
| Duration: | 7.2.2023 – 30.11.2023 |
| CEDITEKII – Rozvoj a podpora výskumno – vývojových aktivít Centra pre testovanie kvality a diagnostiku materiálov v oblastiach špecializácie RIS3 SK | |
| Advancement and support of R&D for "Centre for diagnostics and quality testing of materials" in the domains of the RIS3 SK specialization | |
| Program: | Štrukturálne fondy EÚ Výskum a inovácie |
| Project leader: | prof. RNDr. Dusza Ján, DrSc. |
| Duration: | 1.1.2019 – 30.6.2023 |
| Vysokoteplotné vlastnosti boridových MeB2 (Me = Ti, Zr, Hf) keramických kompozitných materiálov | |
| High-temperature properties of diboride MeB2 (Me = Ti, Zr, Hf) ceramic composite materials | |
| Program: | VEGA |
| Project leader: | Ing. Kovalčíková Alexandra, PhD. |
| Duration: | 1.1.2020 – 31.12.2022 |
| eCHALCO – Štúdium procesov vyvolaných elektrónovým zväzkom a elektromagnetickým žiarením v chalkogenidových sklách | |
| Investigation of phenomena induced by electron beam and electromagnetic radiation in chalcogenide glasses | |
| Program: | SRDA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | e-CHALCO project aims to study the interaction of the electron beam and electromagnetic radiation withsurfaces of thin films from chalcogenide glasses. In this area, we have reported recently results that lead tofundamental understanding of the phenomena induced by local interaction of electric charge andelectromagnetic radiation with these materials. In this project, we plan to continue in more systematic and deeperstudy of the effects induced during local perturbation of these materials, which can lead to local deformation,change in the chemical composition, phase transitions and charge persistence and accumulation using the latestmicroscopic, spectroscopic and diffraction techniques. We also focus on the investigation of influence ofexperimental parameters such as charge deposition lattice period, accelerating voltage, layer thickness, andcomposition of glass for the observed effects. Opportunities to prepare mesoscopic and nanoscopic structureswill lead to new applications of these materials in nanotechnology, for example, in fabrication of nanoemitters, incatalysis and in fabrication of probes for scanning probe microscopy and in technologies for recording andstoring information. |
| Duration: | 1.8.2018 – 31.7.2022 |
| Vývoj nano/mikrovlákien na báze oxidov kovov metódou elektrostatického zvlákňovania pre špeciálne technické aplikácie | |
| Development of nano/microfibers based on metal oxides by needle-less electrospinning for special technical applications | |
| Program: | VEGA |
| Project leader: | Ing. Múdra Erika, PhD. |
| Duration: | 1.1.2018 – 31.12.2020 |
| Vplyv grafénu na tribologické vlastnosti keramických materiálov na báze karbidov a boridov | |
| The influence of graphene platelets addition on tribological properties of ceramic composites based on carbides and borides. | |
| Program: | VEGA |
| Project leader: | Ing. Kovalčíková Alexandra, PhD. |
| Duration: | 1.1.2017 – 31.12.2019 |
| ZKVAVESE – Zvýšenie kvality výstrižkov a efektívnosti strihania elektroplechov | |
| Increasing the quality of cut-outs and effectiveness of cutting electric sheets | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Electric tractions (motors) are inseparable part of many devices from the motor for home appliances through theelectric motors for machines and equipment to electric motors for electric vehicles. Most of these motors consistof the rotor and stator, which are based on the cut-outs from electrical sheets. The cut-outs are joined into therotor and stator bundles. When making the bundles, the important factor is the quality of cutting surface, whichalso influences the additional operations. It also has a significant effect on the quality parameters of electricmotors (size of losses by engine heating). The proposed project has the ambition to solve the optimization of thequality of cutting existing and new developed electrical sheets in context of the expected development ofproduction of electric vehicles. The base of the experimental part is the verification of new tool materials(including uncoated ones) for the production of the active parts of cutting tools for the purpose of increasing thequality of cutting surface and tool life and thereby increasing the efficiency of production of cut-outs fromelectrical sheets. |
| Duration: | 1.7.2015 – 30.6.2018 |
| MICONA – Multikomponentné nanokompozitné povlaky pripravené vysokoionizovanými depozičnými technológiami | |
| Multicomponent nanocomposite coatings prepared by highly ionized deposition technologies | |
| Program: | SRDA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | Project is focused on the application of the latest theoretical models for the increase of thermal stability, structural and oxidation resistance, wear resistance, lifetime and toughness in the development of new hard three- and multicomponent nanocomposite coatings based on Ti-, Cr-, Al- and W-nitrides by means of doping by the reactive elements and on the optimization of the newest iPVD processes with the high degree of ionization of the deposited material based on HiPIMS and HiTUS technologies. The main idea is to create new nanostructural systems based on the known 2D and 3D nanocomposite systems (TiB2, Ti-B-N, Ti-Al-N, Cr-Al-N, W-C, W-C-N) doped with additional elements (Ta, V, Y, W, Nb, Si, B a pod.), which will increase toughness and crack resistance of the coatings. They will simultaneously create active barriers supressing oxidation and thus, reduce mechanical properties degradation of the coatings and/or coated substrate at elevated temperatures. The work, which is a direct continuation of the previous project APVV 0520- 10, also involves the investigation of the relationships among the deposition parameters, resulting structure and properties of new systems for hard coatings and basic understanding of the mechanisms of the nanostructure formation, metastable phase decomposition, formation of stable structures, etc. in the case of novel deposition technologies with high degree of ionization of the sputtered material. |
| Duration: | 1.7.2015 – 29.6.2018 |
| Vplyv stupňa ionizácie plazmy na štruktúru a mechanické vlastnosti MeC a MeN (Me=Ti, Cr, W) povlakov pripravovaných vysokoenergetickými pulznými PVD procesmi | |
| The effect of high plasma ionization on structure and mechanical properties of high energy pulsed PVD MeC and MeN (Me=Ti, Cr, W) based coatings | |
| Program: | VEGA |
| Project leader: | Ing. Kvetková Lenka, PhD. |
| Annotation: | The project is aimed at the investigation of the fundamental relationships between the degree of ionization and the plasma density, as well as power density on the sputtered target on the microstructure and mechanical properties, such as hardness and tribological properties, of nitride and carbide coatings (TiN, Cr and WC) prepared by the novel HiPIMS and HITUS sputtering methods at temperatures below 200oC. The project includes a comparison of these relations with the results of conventional methods of magnetron sputtering, creation of a database of relationships preparation conditions -microstructure – properties of coatings prepared by these new methods as well as determination of optimum conditions for deposition technology of coatings with reproducible properties |
| Duration: | 1.1.2015 – 31.12.2017 |
| VEGA – Modelovanie napäťových stavov pri nanoindentácii a mechanickom zaťažení v kompozitných systémoch | |
| Modeling of stress state during nanoindentation and mechanical loading in composite systems (MONACO) | |
| Program: | VEGA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | Project deals with the mathematical and experimental modelling of stress states during instrumented indentation and scratch testing under uniaxial – and multiaxial loading of fixed beam in composite systems by means of finite element modeling and experimental testing in model systems. The aim of the project is to create a knowledge basis for the optimization of the conditions for the measurement of nanohardness and scratch resistance of thin hard coatings on hard and soft substrates using instrumented indentation and scratch testing and on the increase of mechanical bonding of beams under loading mimicking bicortical dental implants. |
| Duration: | 1.1.2014 – 31.12.2016 |
| Plazmon – Nanokompozity pre plazmoniku na báze chalkogénnych skiel s kovovými nanočasticami | |
| Chalcogenide glasses/netal nanoparticles nanocomposites for plasmonics | |
| Program: | SRDA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | The project is oriented toward the development of a novel types of photosensitive materials for optical sensors that use spontaneous or coherent plasmonic signal generation by metal nanoparticles integrated into the non-oxide glassy film matrix or film/substrate interlayer. The possible role of localized plasmon will be investigated and optimized from the viewpoint of surface relief formation. The planned works include the development of bulk material technology, vacuum thermal deposition of homogeneous and composite layers, their structural characterization by SEM and AFM as well as testing of their mechanical properties using in situ depth-sensing nanoindentation. The basic research will be focused on the study of directed laser processing methods for some selected materials, solving the problems of assembling nanostructures, as well as adjusting them to potential applications in the field of optical sensing in nanoplasmonics. |
| Duration: | 1.9.2015 – 31.12.2016 |
| APONAZEP – Aplikácia progresívnych povlakov nástrojov pre zvýšenie efektívnosti a produktivity lisovania plechov z moderne koncipovaných materiálov | |
| Application of progressive tool coatings for increasing the effectiveness and productivity of forming sheets made of modern materials | |
| Program: | SRDA |
| Project leader: | RNDr. Džupon Miroslav, PhD. |
| Annotation: | Project solves problems of forming process optimisation and increasing of forming dies lifetime by application of thin coatings to die´s contact surfaces and researches interaction of tribologic pair die surface-sheet surface.Within the project will be researched coated steel sheets (galvanized, tin) as well as aluminium alloys sheets used in automotive and consumers industry. Tribologic system die surface-sheet surface will be researched from the view their surface topology, adhesive and abrasive wearing and deformation and failure mechanisms of die and sheet coatings. Research of active die parts will be focused to coating-die material system in initial state, after deposition conventionial coating based on Ti-Al-N and after deposition new composite coatings based on TiN, TiCN and TiAlN.These coating will be researched before and mechanical loading and after working condition simulation. Modern experimental techniques will be used to diagnose system coating-die material degradation under known qualitative stress distribution in analysed area. Experimentally measurable strength and structural parameters of coating-die material will be identified, that have dominant influence to processed sheets surface quality and die´s lifetime. Wearing tests laboratory results of coatings will be correlated to results of forming dies coatings loading under industial and semi-industrial conditions. |
| Duration: | 1.7.2012 – 30.6.2015 |
| HACONE – Vysokoteplotné nanokompozitné povlaky so zvýšenou oxidačnou odolnosťou a životnostou | |
| High temperature oxidation resistant nanocomposite coatings with improved lifetime | |
| Program: | SRDA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Duration: | 1.5.2011 – 31.12.2013 |