A compound glass coating with micro-pores to protect SiC-coated C/C composites against oxidation at 1773 K and 1973 K

Xiaofei Zhu; Yulei Zhang; Jian Zhang; Tao Li; Wei Xie; Pei Zhang; Honggang Li

doi:10.1016/j.corsci.2021.109983

A compound glass coating with micro-pores to protect SiC-coated C/C composites against oxidation at 1773 K and 1973 K

Xiaofei Zhu, Yulei Zhang, Jian Zhang, Tao Li, Wei Xie, Pei Zhang, Honggang Li

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

24 引用（Scopus）

摘要

A compound glass coating with micro-pores, derived from the pre-oxidation of the porous HfSi₂-SiC-Si coating, was fabricated on SiC-coated C/C composites. The coating resisted cracking by introducing micro-pores and compressive stress, which blocked oxygen diffusion and covered penetrable cracks in the SiC inner coating. A dual-layer structure for synergistic anti-oxidation was formed during oxidation at 1773 K and uniformly distributed Hf-oxides reduced the volatilization of SiO₂ at 1973 K in the compound glass coating. Therefore, the coating could protect C/C composites against oxidation for 447 h at 1773 K and 45 h at 1973 K.

源语言	英语
文章编号	109983
期刊	Corrosion Science
卷	195
DOI	https://doi.org/10.1016/j.corsci.2021.109983
出版状态	已出版 - 2月 2022

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10.1016/j.corsci.2021.109983

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引用此

@article{2df9644227e643fda27c0362019365ee,

title = "A compound glass coating with micro-pores to protect SiC-coated C/C composites against oxidation at 1773 K and 1973 K",

abstract = "A compound glass coating with micro-pores, derived from the pre-oxidation of the porous HfSi2-SiC-Si coating, was fabricated on SiC-coated C/C composites. The coating resisted cracking by introducing micro-pores and compressive stress, which blocked oxygen diffusion and covered penetrable cracks in the SiC inner coating. A dual-layer structure for synergistic anti-oxidation was formed during oxidation at 1773 K and uniformly distributed Hf-oxides reduced the volatilization of SiO2 at 1973 K in the compound glass coating. Therefore, the coating could protect C/C composites against oxidation for 447 h at 1773 K and 45 h at 1973 K.",

keywords = "Carbon/carbon composites, Compound glass coating, Crack resistance, Micro-pores, Oxidation resistance",

author = "Xiaofei Zhu and Yulei Zhang and Jian Zhang and Tao Li and Wei Xie and Pei Zhang and Honggang Li",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2022",

month = feb,

doi = "10.1016/j.corsci.2021.109983",

language = "英语",

volume = "195",

journal = "Corrosion Science",

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TY - JOUR

T1 - A compound glass coating with micro-pores to protect SiC-coated C/C composites against oxidation at 1773 K and 1973 K

AU - Zhu, Xiaofei

AU - Zhang, Yulei

AU - Zhang, Jian

AU - Li, Tao

AU - Xie, Wei

AU - Zhang, Pei

AU - Li, Honggang

PY - 2022/2

Y1 - 2022/2

N2 - A compound glass coating with micro-pores, derived from the pre-oxidation of the porous HfSi2-SiC-Si coating, was fabricated on SiC-coated C/C composites. The coating resisted cracking by introducing micro-pores and compressive stress, which blocked oxygen diffusion and covered penetrable cracks in the SiC inner coating. A dual-layer structure for synergistic anti-oxidation was formed during oxidation at 1773 K and uniformly distributed Hf-oxides reduced the volatilization of SiO2 at 1973 K in the compound glass coating. Therefore, the coating could protect C/C composites against oxidation for 447 h at 1773 K and 45 h at 1973 K.

AB - A compound glass coating with micro-pores, derived from the pre-oxidation of the porous HfSi2-SiC-Si coating, was fabricated on SiC-coated C/C composites. The coating resisted cracking by introducing micro-pores and compressive stress, which blocked oxygen diffusion and covered penetrable cracks in the SiC inner coating. A dual-layer structure for synergistic anti-oxidation was formed during oxidation at 1773 K and uniformly distributed Hf-oxides reduced the volatilization of SiO2 at 1973 K in the compound glass coating. Therefore, the coating could protect C/C composites against oxidation for 447 h at 1773 K and 45 h at 1973 K.

KW - Carbon/carbon composites

KW - Compound glass coating

KW - Crack resistance

KW - Micro-pores

KW - Oxidation resistance

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DO - 10.1016/j.corsci.2021.109983

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SN - 0010-938X

VL - 195

JO - Corrosion Science

JF - Corrosion Science

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