陶瓷基复合材料在航空发动机热端部件应用及热分析研究进展

陶瓷基复合材料(CMC)具有密度低、耐高温的优异特性而被视为新一代航空发动机的战略热结构材料,其制备工艺、性能设计及其在燃烧室和涡轮等热端部件的应用已成为现阶段航空发动机研究领域的热点.然而,由于编织特征导致的各向异性特性,给CMC在热端部件的应用和加工带来巨大挑战.本文总结了有关陶瓷基复合材料在航空发动机热端部件上的...

Advancement in Application and Thermal Analysis of Ceramic Matrix Composites in Aeroengine Hot Components

The aeroengine technology is becoming one of the most challenging, difficult and influential research fields all over the world. Many countries are putting more emphases on this field. For pursuing the increasing overall performance,the aeroengine is always operating nearly at 2200K,which is much higher than the superalloy melting point. Therefore, the development of the aeroengine based on the superalloy material encounters the bottleneck. Ceramic Matrix Composites (CMC), with low density and high thermal resistance, has been regarded as the potential thermal structure material for the future. Currently, CMC is gradually utilized in aeroengine and the rocket engine, especially in the hot components such as stator vane, rotor blade and combustor. Nevertheless, the anisotropy properties of CMC due to the internal structural and the difference between matrix and fibers lead to big challenges and difficulties for the hot components design and manufacturing. The present paper aims to analyze the development and the perspective of the CMC applications in aeroengine based on a brief review of the relevant pubulic resarch work.