高超声速飞行器两类典型防热材料的性能表征与评价

MATERIAL CHARACTERIZATION AND BEHAVIOR EVALUATION OF TWO TYPICAL THERMAL PROTECTION MATERIALS FOR HYPERSONIC AIRCRAFTS

针对高超声速飞行器翼前缘用超高温陶瓷材料及机身大面积金属热防护结构材料在高温环境下的力学响应分析与评价方法进行了全面的回顾和总结.综述了大面积金属热防护系统在传热、静力学、热力耦合性能、疲劳性能及抗冲击性能等方面国内外的研究进展;以及超高温陶瓷材料在热冲击、增韧机制、抗氧化性能等方面评价与表征技术,并结合国内研究状况展望了今后的发展方向.

The mechanical response in high temperature and evaluation methods of ultrahigh temperature ceramic materials used on wing leading edge and large area metallic thermal protection materials and structures used in my personic airframe are reviewed and summarized in this paper. The domestic and abroad research developments of large area metallic thermal protection systems in certain important areas are documented, such as thermal conduction, statics, thermal and mechanical coupled behavior, and fatigue and impact resistant behaviors. The thermal shock, toughening mechanism and anti-oxidation behavior etc. of ultrahigh temperature ceramics are characterized and evaluated, and the development trends and prospects of these thermal protection materials are further discussed.