SiC/SiC-ZrSi2 coating with micro-pore to protect C/C composites against oxidation for long-life service at high temperatures

Xiaofei Zhu, Yulei Zhang, Honggang Li, Jian Zhang, Yanqin Fu, Yangyang Su

科研成果: 期刊稿件文章同行评审

35 引用 (Scopus)

摘要

To improve the oxidation resistance of C/C composites for long-life service at high temperatures, a SiC/SiC-ZrSi2 coating with micro-pore was prepared by pack cementation and slurry, respectively. The coating could protect C/C composites for 1194 h at 1773 K in air with a mass gain of 1.42 wt.%. Such good antioxidant property was ascribed to the SiO2-ceramic inlay structure with the ability of healing and covering the penetrating crack formed during oxidation, which had excellent oxygen diffusion resistance. Besides, the thermal stress was reduced by the micropores and the crack propagation was inhibited by ZrSiO4 particles.

源语言英语
文章编号109780
期刊Corrosion Science
191
DOI
出版状态已出版 - 10月 2021

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