Self-Healing in High Temperature ZrB[2]-SiC Ceramics
| Parent link: | AIP Conference Proceedings Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19).— 2019.— [020042, 4 p.] |
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| Autor corporatiu: | |
| Altres autors: | , , , |
| Sumari: | Title screen High-temperature composite materials based on ZrB[2]-SiC are promising for creating heat-protective multicycle structures operating at temperatures over 2000°С due to high heat resistance and low specific gravity. In the research the defects self-healing kinetics of high-temperature ZrB[2]-SiC ceramic composites in the temperature range of 1200-1600°С was studied. It has been shown that one of the most effective defects self-healing process was observed after annealing at a temperature of 1600°С, regardless of the SiC content. At the same time samples annealed at 1200 and 1400°С were significantly inferior in healing ability, despite the increasing of the isothermal exposure time. For all studied composites increasing of the heat treatment duration provided increase of the self-healing percentage. Moreover, defects were eliminated more quickly in ceramics with silicon carbide content of 15 and 20 vol %. Режим доступа: по договору с организацией-держателем ресурса |
| Publicat: |
2019
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1063/1.5131909 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661473 |
| Sumari: | Title screen High-temperature composite materials based on ZrB[2]-SiC are promising for creating heat-protective multicycle structures operating at temperatures over 2000°С due to high heat resistance and low specific gravity. In the research the defects self-healing kinetics of high-temperature ZrB[2]-SiC ceramic composites in the temperature range of 1200-1600°С was studied. It has been shown that one of the most effective defects self-healing process was observed after annealing at a temperature of 1600°С, regardless of the SiC content. At the same time samples annealed at 1200 and 1400°С were significantly inferior in healing ability, despite the increasing of the isothermal exposure time. For all studied composites increasing of the heat treatment duration provided increase of the self-healing percentage. Moreover, defects were eliminated more quickly in ceramics with silicon carbide content of 15 and 20 vol %. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1063/1.5131909 |