Study of thermophysical properties of composites based on TiB2 and ZrB2 with copper matrix for high temperature applications
| Project start: | 01.01.2016 |
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| Project end: | 31.12.2018 |
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| Programme: | VEGA |
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| Project number: | 2/0172/16 |
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| Institute position in the project: | The only one project investigator |
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| Project leader: | Naďa Beronská |
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The project is focused on the fundamental research of composite materials containing a ceramic phase (particles or preform) with extremely high melting temperature (TiB
2 or ZrB
2), wherein the matrix consists of a material with high thermal conductivity (copper, resp. Cu alloys). The composites will be prepared by gas pressure infiltration of molten metal into the ceramic preform of different porosity. One of the objectives of the project will be to determine which interactions between the components significantly influence the penetration of molten metal into the sample volume. As soon as the parameters of composites preparation are optimized the corresponding changes in the microstructure will be analyzed and thermophysical properties of the composite will be measured before and after thermal cycling at the temperature of 1000 °C. The findings will be used to prepare composites of simple and complex shapes with increased resistance to high temperatures and very good thermal and electrical conductivity.