C/C复合材料表面耐高温抗氧化硅基陶瓷涂层研究进展

Carbon/carbon (C/C) composites have broad application prospects in aviation, aerospace and other fields because of their unique performance advantages at high temperature, but the oxidation sensitivity at high temperature has become the biggest bottleneck in their application. Surface coating technology is internationally recognized as the most effective way to solve this problem. Among the anti-oxidation coating systems on the surface of C/C composite, the silicon-based ceramic coating is the most mature one in the present study. In this paper, according to the three most representative systems of SiC coating, MoSi₂ based coating and ultra-high temperature ceramic modified silicon-based ceramic coating, the coating preparation method, composition design, anti-oxidation mechanism and research progress at home and abroad were respectively reviewed. The existing problems of silicon-based ceramic coating on C/C composites were discussed, and the development trend of this research direction in the future was also put forward.