关键词: 连续同步复合法, 陶瓷基, 复合材料, CVI, 制备工艺

Abstract:

Continuous Synchronous Composite (CSC) is a novel process to fabricate ceramic matrix composites reinforced with carbon cloths, and is based on conventional chemical vapor infiltration(CVI) principles. In the CSC processing, carbon cloths continuously wind around the graphite substrate, so the continuous synchronous composite between reinforced phase and matrix is achieved, on a micro\| and macro\| scale, by means of synchronous conducting between pyrolysis deposition of matrix and preparation of preform. By means of controlling concentration of reactant gas CH 3SiCl 3(MTS), deposition temperature and carbon cloth rotational linear velocity, the filling of matrix into micro\|holes and macro\|holes is achieved correspondingly. The density of C/SiC composites fabricated using CSC processes can achieve 93% of the theoretical density.

Key words: continuous synchronous composite, ceramic matrix, composites, CVI, the manufacturing processing