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Intranet
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International
| STRENGTHECS – Spevnenie a plasticita vysokoentropických ultra vysokoteplotných karbidov | |
| Strengthening and plasticity of high-entropy ultra-high temperature carbides | |
| Program: | Other |
| Project leader: | MSc. Csanádi Tamás , PhD. |
| Duration: | 1.7.2021 – 30.6.2024 |
| ERC začínajúci projekt | |
| ERC starting grant | |
| Program: | Bilateral – other |
| Project leader: | MSc. Csanádi Tamás , PhD. |
| Annotation: | Preparation of scientific project of ERC |
| Duration: | 1.1.2020 – 30.10.2020 |
National
| MOSAIC – Spevnenie a plasticita vysokoentropickej keramiky na atómovej úrovni | |
| Atomic-scale controlled strengthening and plasticity of high-entropy ceramics | |
| Program: | IMPULZ |
| Project leader: | MSc. Csanádi Tamás , PhD. |
| Duration: | 1.9.2023 – 31.8.2028 |
| 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 |
| Nanomechanické skúšanie a deformovateľnosť vysokoentropických ultra vysokoteplotných keramických materiálov | |
| Nanomechanical testing and deformability of high-entropy ultra-high temperature ceramics | |
| Program: | VEGA |
| Project leader: | MSc. Csanádi Tamás , PhD. |
| Duration: | 1.1.2021 – 31.12.2023 |
| WLEDMat – Nové sklené a sklokeramické fosfory na báze hlinitanov vzácnych zemín pre aplikácie v pevnolátkových energiu šetriacich svetelných zdrojoch vyžarujúcich biele svetlo (pc-WLED diódy). | |
| Novel glass and glass-ceramic rare-earth aluminates-based phosphors for energy-saving solid state lighting sources emitting white light (pc-WLEDs). | |
| Program: | SRDA |
| Project leader: | doc. RNDr. Lofaj František, DrSc. |
| Annotation: | The project is focused on research and development of novel glass and glass-ceramic rare-earth aluminatesbasedluminescent materials for white light-emitting diodes (pc-WLED), especially materials with efficient redemission, which could improve CRI index compared to the known commercially produced phosphors. Phosphorswill be prepared in the form of glass microbeads. The structure of undoped alumninate glasses in the systemAl2O3-RE2O3 will be studied by spectroscopic methods. Thermal properties and kinetics of crystallization will bealso studied. In order to preparer glass-ceramics materials with required properties, the conditions ofcrystallization process will be investigated and optimized. Photoluminescence properties of glass and glassceramicrare-earth and transition metal ions doped materials will be studied in detail. Special attention will bepaid to study of relations between luminescent properties of materials and their structure and morphology. Infinal stage of the project, the composite PiG materials (Phosphor in Glass) will be prepared and characterized asthin plates suitable for direct application onto excitation LED chip. A LED diode emitting white light/warm whitelight will be contracted using the LED chip with suitable excitation wavelength in the NUV spectral range andprepared PiG composite with optimised thickness, so that optimal emission characteristic will be achieved. |
| Duration: | 1.8.2018 – 31.7.2022 |
| 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 |
| PyrMat – Vývoj žiaruvzdorných pyrochlórnych fáz pre vysokoteplotné aplikácie neeoxidovej keramiky | |
| Development of refractory pyrochlore phases for high temperature applications of non-oxide ceramics | |
| Program: | SRDA |
| Project leader: | prof. RNDr. Dusza Ján, DrSc. |
| Duration: | 1.7.2018 – 30.6.2022 |
| 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 |