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

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

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.

Original language	English
Article number	109983
Journal	Corrosion Science
Volume	195
DOIs	https://doi.org/10.1016/j.corsci.2021.109983
State	Published - Feb 2022

Keywords

Carbon/carbon composites
Compound glass coating
Crack resistance
Micro-pores
Oxidation resistance

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10.1016/j.corsci.2021.109983

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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",

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year = "2022",

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

language = "英语",

volume = "195",

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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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U2 - 10.1016/j.corsci.2021.109983

DO - 10.1016/j.corsci.2021.109983

M3 - 文章

AN - SCOPUS:85120156588

SN - 0010-938X

VL - 195

JO - Corrosion Science

JF - Corrosion Science

M1 - 109983

ER -

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

Abstract

Keywords

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