Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating

被引：50

作者：

Zhang, Jian ^{[1
]}

Zhang, Yulei ^{[1
]}

Fu, Yanqin ^{[1
]}

Zhang, Yutai ^{[1
]}

Zhu, Xiaofei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Shaanxi Key Lab Fiber Reinforced Light Composite, Xian 710072, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 192卷

基金：

中国国家自然科学基金;

关键词：

C/C composites; Chemical vapor deposition; HfC coating; CVD-SiC; Ablation resistance; CHEMICAL-VAPOR-DEPOSITION; CARBON/CARBON COMPOSITES; HAFNIUM CARBIDE; RESISTANCE; NANOWIRES; OXIDATION; MICROSTRUCTURE; KINETICS; LAYERS;

D O I：

10.1016/j.corsci.2021.109819

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

HfC coatings were deposited on the surface of carbon/carbon (C/C) composites and CVD-SiC coating by low-pressure chemical vapor deposition (CVD), respectively. The effects of two substrates on the microstructure, phase composition and preferred orientation of HfC coatings were investigated in detail. Results showed that HfC coatings deposited on two substrates inherit their own substrate surface characteristics. After ablation for 90 s, the HfC coating prepared on CVD-SiC coating has better ablation resistance under oxyacetylene flame with heat flux of 2.4 MW/m(2), because the transition layer can effectively relieve the damage caused by thermal stress.

引用

页数：11

共 43 条

[1] CHEMICAL-VAPOR-DEPOSITION OF HAFNIUM CARBIDE AND CHARACTERIZATION OF THE DEPOSITED LAYERS BY SECONDARY-NEUTRAL MASS-SPECTROMETRY [J].