Effect of SiCnws@BN core shell upon impact-ablation performance of HfC coating on C/C composites

被引：11

作者：

Tong, Mingde ^{[1
]}

Ding, Jiahui ^{[1
]}

Li, Ni ^{[1
]}

Feng, Tao ^{[1
]}

Fu, Qiangang ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Xian 710072, Shaanxi, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 209卷

基金：

中国国家自然科学基金;

关键词：

Ablation; Chemical vapor deposition; Interphase; Coating; Ultrahigh temperature ceramics; MECHANICAL-PROPERTIES; CARBON/CARBON COMPOSITES; STRUCTURE NANOWIRES; MICROSTRUCTURE; RESISTANCE; OXIDATION; INFILTRATION; TRANSITION; PROTECTION; BEHAVIOR;

D O I：

10.1016/j.corsci.2022.110707

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To improve the thermal protection performance of HfC coating subject to impact, SiCnws@BN core-shell nano -wire reinforced HfC coating was fabricated by chemical vapor deposition and compared to the SiCnws@PyC/HfC coating. The experiments showed that the ablation resistance of SiCnws@PyC/HfC coating decreased signifi-cantly. In comparison, the ablation resistance of SiCnws@BN/HfC coating was barely affected by impact. A dense oxide layer was formed on the surface of SiCnws@BN/HfC coating after impact and ablation. The shrinking and self-healing effect of SiCnws@BN during oxidation process was investigated, which explained the formation process of dense oxide layer.

引用

页数：13

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