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
收藏
页码：7543 / 7552
页数：10
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