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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (2): 682-693.

Special Issue: 陶瓷

• Ceramics • Previous Articles     Next Articles

Research Progress on Rare Earth Modified Ultra-High Temperature Ceramics and Their Composites

SHI Yangfan1, PAN Yong2, GAO Yang2, CHI Pengtao2, CHEN Sian1   

  1. 1. Science and Technology on Advanced Ceramic Fibers & Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. Science and Technology on Space Physics Labrotary, China Academy of Launch Vehicle Technology, Beijing 100076, China
  • Received:2022-10-07 Revised:2022-11-14 Online:2023-02-15 Published:2023-03-07

Abstract: Ultra-high temperature ceramics and their composites have become the focus and frontier of thermal structural materials research in the field of aerospace because of their advantages of ultra-high temperature resistance, lightweight and anti-oxidation ablation. Based on the excellent performance and successful application of rare earth compounds in thermal barrier coatings and other fields, researchers have introduced rare earth compounds into ultra-high temperature ceramics and their composites to improve the structure and properties of oxide layer in order to solve the problems of rapid growth of oxide layer of ultra-high temperature ceramic matrix composites and easy spalling of high and low temperature circulating oxygenation layer in a wide temperature range. This paper summarized the research status of rare earth modified ultra-high temperature ceramics and their composites, analyzed and discussed the modification mechanism, and looked forward to the future research and development direction.

Key words: ultra-high temperature ceramics, ultra-high temperature ceramic composite, rare earth element, oxidation and ablation behavior, compound modification, oxide layer

CLC Number: