热梯度CVI制备炭/炭复合材料及其研究进展  

RESEARCH PROGRESS AND FABRICATION OF C/C COMPOSITES BY THERMAL GRADIENT CVI PROCESS

作　　者：汤中华[1] 邹志强[1] 

机构地区：[1]中南工业大学粉末冶金国家重点实验室,长沙410083

出　　处：《炭素》2003年第3期18-20,共3页Carbon

摘　　要：按预制件内部的温度分布不同,可以认为,均热法及热梯度法是化学气相沉积制备炭/炭复合材料的两种基本工艺。对于圆筒或圆盘形工件,热梯度CVI具有增密快,炭的有效利用率高,可实现工业规模化生产的优点,是一种很有前景的CVI工艺。本文介绍了热梯度CVI制备炭/炭复合材料的工艺原理、工艺特点及其最新研究进展。According to the defferent temperature distributions in the performs,isothermal method and thermal gradient method may be considered as two basic techniques of fabricating C/C composites by CVI. As a rapid densification process, thermal gradient CVI process is suited for densifying cylindre and disklike performs. It is a prospective process, for it has the advantages of high availability efficiency and potential of seal-up. In the present paper,the principles,characteristics of this process and its latest progress are introduced.

关 键 词：热梯度CVI 制备 炭/炭复合材料 研究进展 预制件 

分 类 号：TQ127.11[化学工程—无机化工]