Oxidation protection of C/C composites by ultra long SiC nanowire-reinforced SiC-Si coating

被引：47
作者：
Chu, Yanhui [1 ]
Li, Hejun [1 ]
Li, Lu [1 ]
Qi, Lehua [2 ]
机构：
[1] Northwestern Polytech Univ, Carbon Carbon Composites Res Ctr, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Sch Mechatron Engn, Xian 710072, Peoples R China
来源：
CORROSION SCIENCE | 2014年 / 84卷
基金：
中国国家自然科学基金;
关键词：
Ceramic matrix composites; High temperature corrosion; Oxidation; CARBON/CARBON COMPOSITES; BEHAVIOR;
D O I：
10.1016/j.corsci.2014.03.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultra long SiC nanowire-reinforced SIC-Si oxidation protective coating was prepared on C/C composites by pack cementation and chemical vapor deposition. The cracking of the coating was significantly suppressed by continuous reticulate architecture of ultra long SiC nanowires, resulting in good oxidation protection for C/C composites. The thermogravimetric analysis result showed that the oxidation of the samples was a continuous weight gain process from room temperature to 1500 degrees C and the final weight gain was 1.43%. The isothermal oxidation result showed that the weight loss of the samples was 0.44% after oxidation at 1500 degrees C in air for 160 h. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：204 / 208
页数：5
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