Densification of unidirectional carbon-carbon composites by isothermal chemical vapor infiltration

被引：26
|
作者：
Li, HJ [1 ]
Hou, XH [1 ]
Chen, YX [1 ]
机构：
[1] Northwestern Polytech Univ, Dept Mat Sci & Engn, Xian 710072, Peoples R China
来源：
CARBON | 2000年 / 38卷 / 03期
关键词：
carbon-carbon composites; chemical vapor infiltration (CVI); microstructure;
D O I：
10.1016/S0008-6223(99)00122-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The aim of this research was to investigate the densification of cylindrical unidirectional C-C composites by isothermal chemical vapor infiltration. Several different preforms with different fiber volume fractions were prepared, and it was found that the preforms with the lower fiber volume fraction have a more rapid rate of densification and the final density is higher. The problem of infiltrating uniformly, as well as the effects of large penetrating holes in the preform on densification was also discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：423 / 427
页数：5
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