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| DESICAEX – Vývoj karbidu kremičitého pre extrémne aplikácie | |
| Development of silicon carbide for extreme application | |
| Program: | SRDA |
| Project leader: | Ing. Hanzel Ondrej, PhD. |
| Annotation: | The proposed project is oriented towards development of fully dense silicon carbide ceramics without traditional oxide sintering additives or with addition of trace amount of metals (Al, Fe) at sintering temperature lower than temperature (T < 2100°C) required for preparation of solid-state sintered SiC. Project will be focused on comprehensive understanding of sintering mechanisms and study how modification of silicon carbide powders and/or addition of very small amount of metals (Al, Fe) can possibly influence and lower sintering temperature for preparation of fully dense silicon carbide. Due to the increasing interests and demands in energy applications, atmospheric re-entry vehicles, propulsion-system components, aerospace applications, parts of rocket engines, etc. is inevitable also characterize high-temperature properties (thermal conductivity, high-temperature strength, oxyacetylene torch resistance) of prepared silicon carbide ceramics. So, thermal conductivity up to 1500°C, high-temperature strength in temperature range 1500 – 2000°C and oxyacetylene torch resistance at temperature higher than 1700°C will be investigated and effect of powder modification, sintering parameters and microstructure on high-temperature properties will be studied and evaluated |
| Duration: | 1.9.2025 – 31.8.2029 |
| Nová generácia termoelektrických materiálov pre udržateľnú energiu | |
| Next Generation Thermoelectrics for Sustainable Energy | |
| Program: | Plán obnovy EÚ |
| Project leader: | Ing. Tatarko Peter, PhD. |
| Annotation: | The aim of the project is to build up a new excellent research team with the state-of-the-art infrastructure to design and develop new generation thermoelectric materials with significantly improved efficiency of energy conversion. The project proposes a unique and innovative approach to design new entropy stabilised perovskite oxides to generate new significant knowledge and understanding of the effect of multi-principal elements doping at both A- and B-sites of ABO3 perovskite structures on their thermoelectric performance. In addition, the effect of non-equimolar multi-principal elements doping on thermoelectric properties of perovskite oxides will be investigated for the first time. The project also proposes a new strategy in manufacturing of perovskite oxides to further improve their thermoelectric performance by the combination of entropy stabilisation approach with the nanostructuring design and vacancies formation approaches. The proposed methodology and approach will significantly contribute to the ongoing effort to reach a climate neutral Europe by 2050. |
| Duration: | 1.4.2024 – 30.6.2026 |