Journal of Inorganic Materials ›› 2022, Vol. 37 ›› Issue (1): 86-92.DOI: 10.15541/jim20210182

Special Issue: 【结构材料】超高温结构陶瓷 【结构材料】陶瓷基复合材料 2022年度中国知网高下载论文

• RESEARCH ARTICLE • Previous Articles     Next Articles

Ablation Behavior of Ultra-high Temperature Composite Ceramic Matrix Composites

JU Yinchao1,2(), LIU Xiaoyong2, WANG Qin2, ZHANG Weigang3, WEI Xi2()   

  1. 1. School of Energy and Power Engineering, Beihang University, Beijing 100191, China
    2. Science and Technology on Scramjet Laboratory, Beijing Power Machinery Research Institute, China Aerospace Science and Industry Corporation Limited, Beijing 100074, China
    3. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2021-03-23 Revised:2021-05-21 Published:2022-01-20 Online:2021-06-01
  • Contact: WEI Xi, senior engineer. E-mail: weixi31s@163.com
  • About author:JU Yinchao (1985-), male, PhD candidate. E-mail: by1704142@buaa.edu.cn

Abstract:

Ultra-high temperature composite ceramic matrix composites ZrC-SiC, ZrB2-ZrC-SiC and HfB2-HfC-SiC were fabricated by precursor infiltration and pyrolysis method. The ultra-high temperature ceramic phases in the materials were characterized by submicron/ nanometer uniform dispersion distribution. Ablation behaviors of ZrC-SiC, ZrB2-ZrC-SiC and HfB2-HfC-SiC matrix composites under atmospheric plasma and on-ground arc-jet wind tunnel were investigated comparatively. The main factors that affect design for ultra-high temperature composite ceramic matrix composites were summarized. The result shows that, compared with traditional SiC-based composites, ultra-high temperature composite ceramic matrix composites have a solid-liquid two-phase dense oxide film formed in situ on the surface of the composites after ablation. Synergistic effect of the two phases has achieved effects of erosion resistance and oxidation resistance, which plays a very important role in hindering the loss of liquid SiO2 and greatly improves the ultra-high temperature ablation performance of the materials. On this basis, the important factors that should be considered in the matrix design of ultra-high temperature composite ceramic matrix composites are obtained. The above results have instructional significance for the ultra-high temperature and the limited life application of ceramic matrix composites.

Key words: ultra-high temperature, composite ceramics, matrix composites, ablation behavior, SiC

CLC Number: