Ablation behaviors and mechanism of ultra-thick anti-oxidation layer coating on carbon-bonded carbon fiber composites

被引：19

作者：

Du, Bin ^{[1
]}

He, Chao ^{[1
]}

Qian, Junjie ^{[1
]}

Wang, Xuan ^{[1
]}

Cai, Mei ^{[1
]}

Shui, Anze ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2019年 / 102卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

ablation behaviors; anti-oxidation layer; carbon-bonded carbon fiber composites; oxyacetylene torch; CARBON/CARBON COMPOSITES; OXIDATION PROTECTION; C/C COMPOSITES; RESISTANCE; COMPRESSION; CARBIDE; SIOC;

D O I：

10.1111/jace.16617

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To enhance the oxidation resistance capability of the carbon-bonded carbon fiber composites (CBCFs), a silicide ultra-thick coating as high as 1.6 mm with gradient structure is designed and fabricated via a multi-step rapid sintering method. Compared with other ceramic layers on carbon fiber-based composites, ultra-thick anti-oxidation layer coated-CBCFs have the lowest thermal conductivity. Additionally, ablation behaviors of the ultra-thick ceramics layer coated-CBCFs under the oxyacetylene torch are also investigated. After being exposed to oxyacetylene torch, the ultra-thick ceramics layer coated-CBCFs possess a linear rate range from 0.6 to 1.2 mu m/s, while a mass ablation rate ranges from 4.95 x 10(-5) g/m(2) s to 1.45 x 10(-3) g/m(2) s.

引用

页码：7543 / 7552

页数：10

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