COMPOSITES SCIENCE AND ENGINEERING ›› 2022, Vol. 0 ›› Issue (9): 109-123.DOI: 10.19936/j.cnki.2096-8000.20220928.016

• REVIEW • Previous Articles     Next Articles

Research progress on SiCf/SiC composite and environmental barrier coating system and preparation technology for aeroengine

WANG Han-yi1, LU Jia-zheng2, HE Qiang3*   

  1. 1. Engineering Technics Training Center, Civil Aviation Flight University of China, Guanghan 618300, China;
    2. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;
    3. College of Aviation Engineering, Civil Aviation Flight University of China, Guanghan 618300, China
  • Received:2022-04-11 Online:2022-09-28 Published:2022-09-27

Abstract: Light and high temperature resistant silicon carbide fiber toughened silicon carbide matrix composites and the environmental barrier coatings (SiCf/SiC CMCs+EBCs) system show great potential in the rising turbine inlet temperature of aeroengines. With over 20 years of research and development, CMC/EBC components have been successfully used in the high temperature end of aeroengines, and new research is emerging one after another. The key preparation technology of SiCf/SiC CMCs+EBCs system includes fiber preparation, preform preparation, interphase preparation, matrix densification and coating. Fiber quality, preform structure and interface layer properties determine the mechanical properties of CMC, while matrix and EBC affect the oxidation resistance and environmental stability of the system. There is still room for further improvement of CMC/EBC preparation technology in the development of new precursors, new processes, new coating materials, optimization of weaving structure, utilization of raw materials and process stability.

Key words: SiCf/SiC composites, SiC fiber, fiber preform, interphase, EBC, aeroengine

CLC Number: