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| Preparation and Oxidation Ablation Resistance of SiC/ZrB2-SiC/SiC Coating on C/C-SiC-ZrB2 Composites |
| Received:May 30, 2019 Revised:June 12, 2019 |
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| DOI：10.7643/issn.1672-9242.2019.10.001 |
| KeyWord:C/C composite material ultra-high temperature ceramic coating oxidation ablation resistance |
| Author | Institution |
| HAN Wen-bo |
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin , China |
| ZHOU Chang-ling |
Shandong Research and Design Institute of Industrial Ceramic, Zibo , China |
| HU Ping |
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin , China |
| ZHANG Xing-hong |
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin , China |
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| Abstract: |
| Objective To study the preparation of SiC/ZrB2-SiC/SiC coating on C/C-SiC-ZrB2 composite surface and its oxidation ablation resistance. Methods SiC/ZrB2-SiC/SiC multiple anti-oxidation coatings were prepared on the surface of C/C composite with graphite and C/C-SiC-ZrB2 composite as the matrix. The microstructure, anti-oxidation and oxidation ablation resistance of the composite were analyzed and studied. Results A three-layer SiC/ZrB2-SiC/SiC ultra-high temperature ceramic coating was prepared. Data on microstructure change and linear ablation rate of C/C-SiC-ZrB2 composite coated with SiC/ZrB2-SiC/SiC coating under wind tunnel test were obtained. The oxidation and ablation mechanism of C/C-SiC-ZrB2 composite was obtained. Conclusion SiC/ZrB2-SiC/SiC coating can significantly improve the oxidation resistance and ablation resistance of C/C-SiC-ZrB2 composite, effectively improving the comprehensive thermal protection performance of C/C-SiC-ZrB2 composite. |
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