航空发动机用自愈合碳化硅陶瓷基复合材料研究进展

Progress on Self-Healing Silicon Carbide Ceramic Matrix Composites

为满足高性能航空发动机在高温燃气环境下长时间使用要求,碳化硅基自愈合陶瓷基复合材料(SHCMC)正朝着抗高温水蒸气侵蚀的方向发展。本文首先从SHCMC的应用要求出发,阐述了SHCMC的结构设计原则;并以近年来SHCMC的氧化研究进展为出发点,详细综述了目前SHCMC所面临的挑战;在此基础上,从提高自愈合玻璃相高温水蒸气条件下稳定性出发,介绍了目前SHCMC的研究进展。一种在水蒸气条件下具有宽温区高效愈合能力的陶瓷基复合材料符合未来发展的趋势。

To meet the long-term use requirements of high performance aero-engine in high-temperature gas environment,SiC-based self-healing ceramic matrix composites(SHCMC)are developing towards the oxidation resistance in high-temperature water vapor environment.This paper firstly clarifies the structural design principles of SHCMC based on the application requirements of it.And the great challenges faced by SHCMC at present were also introduced in detailed.Based on those,some progresses in SHCMC from high temperature stability of self-healing glass phase were reviewed in this paper.The SHCMC with self-healing ability in wide temperature range under the condition of water vapor conforms to the future development trend.