C/C-SiC-ZrB2复合材料表面SiC/ZrB2-SiC/SiC涂层的制备及抗氧化烧蚀性能研究  

Preparation and Oxidation Ablation Resistance of SiC/ZrB2-SiC/SiC Coating on C/C-SiC-ZrB2 Composites

作　　者：韩文波[1] 周长灵[2] 胡平[1] 张幸红[1] HAN Wen-bo;ZHOU Chang-ling;HU Ping;ZHANG Xing-hong(National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute ofTechnology, Harbin 150080, China;Shandong Research and Design Institute of Industrial Ceramic, Zibo 255000, China)

机构地区：[1]哈尔滨工业大学特种环境复合材料技术国家重点实验室,哈尔滨150080 [2]山东工业陶瓷研究设计院有限公司,山东淄博255000

出　　处：《装备环境工程》2019年第10期1-7,共7页Equipment Environmental Engineering

基　　金：国家自然科学基金委杰出青年基金(51525201);国家自然科学基金委面上项目(51872059,11572105,51772061)

摘　　要：目的研究C/C-SiC-ZrB2复合材料表面SiC/ZrB2-SiC/SiC涂层的制备、抗氧化烧蚀性能与机理。方法选择ZrB2和SiC改性的C/C复合材料为基体,通过包埋-刷涂法在C/C-SiC-ZrB2复合材料表面制备了SiC/ZrB2-SiC/SiC多重抗氧化涂层,并对复合材料的微结构、抗氧化烧蚀性能与机理进行分析和研究。结果制备了一种三层结构的SiC/ZrB2-SiC/SiC超高温陶瓷复合涂层,获得了风洞考核试验下的复合材料微结构变化、线烧蚀率等试验数据,并得到了C/C-SiC-ZrB2复合材料的氧化烧蚀机理。结论SiC/ZrB2-SiC/SiC涂层对C/C-SiC-ZrB2复合材料的抗氧化和耐烧蚀性能具有明显提升,有效提高了C/C-SiC-ZrB2复合材料的综合热防护性能。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 com-posite was obtained. Conclusion SiC/ZrB2-SiC/SiC coating can significantly improve the oxidation resistance and ablation re- sistance of C/C-SiC-ZrB2 composite, effectively improving the comprehensive thermal protection performance of C/C-SiC-ZrB2 composite.

关 键 词：C/C 复合材料 超高温陶瓷涂层 抗氧化烧蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]