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A dense ZrB2-SiC-Si/SiC-Si coating to protect carbon/carbon composites against oxidation at 1773 K and 1973 K

  • Lei Zhou
  • , Qiangang Fu
  • , Dou Hu
  • , Jiaping Zhang
  • , Yalong Wei
  • , Jian Zhu
  • , Jingyuan Song
  • , Mingde Tong
  • Northwestern Polytechnical University Xian
  • AECC Shenyang Engine Research Institute

科研成果: 期刊稿件文章同行评审

75 引用 (Scopus)

摘要

A dense double layer ZrB2-SiC-Si/SiC-Si coating with high content of ZrB2 was designed and fabricated by dipping-carbonization joint gaseous silicon infiltration. This coating can protect C/C substrate from oxidation in air at 1773 K for 500 h with a weight gain of 1.14 %. Such good oxidation protective performance was ascribed to the dense compound silicate oxide layer accompanied by ZrSiO4/ZrO2 pinning phases and compressive stress field around ZrB2 particles during oxidation. Besides, introducing abundant ZrB2 phase could inhibit the evaporation of silicate glass at 1973 K, which could protect C/C composites for 78 h with a weight loss of 1.16 %.

源语言英语
文章编号109331
期刊Corrosion Science
183
DOI
出版状态已出版 - 1 5月 2021

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