Design of multilayer plasma-assisted CVD coatings for the oxidation protection of composite materials

被引:42
作者
Tsou, HT [1 ]
Kowbel, W [1 ]
机构
[1] AUBURN UNIV,DEPT MECH ENGN,AUBURN,AL 36849
基金
美国国家科学基金会;
关键词
PACVD; B4C; BN; C-C composites; oxidation;
D O I
10.1016/0257-8972(95)02424-7
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
PACVD B4C and BN single layer coatings and a B4C/BN multilayer coating were deposited onto a C-C composite substrate at 300 degrees C. X-Ray diffraction and Fourier transform IR spectroscopy analysis revealed a complex coating chemistry. Kinetic and isothermal oxidation tests were performed via thermogravimetric analysis. The multilayer B4C/BN coating provided excellent oxidation protection to the underlying C-C substrate at temperatures up to 900 degrees C. A correlation between the coating chemistry, morphology, microstructure and oxidation behavior is discussed.
引用
收藏
页码:139 / 150
页数:12
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