Carbon-carbon composites prepared by a rapid densification process I: Synthesis and physico-chemical data

被引：84

作者：

Bruneton, E ^{[1
]}

Narcy, B ^{[1
]}

Oberlin, A ^{[1
]}

机构：

[1] CEA, F-91680 Bruyeres Le Chatel, France

来源：

CARBON | 1997年 / 35卷 / 10-11期

关键词：

carbon/carbon composites; infiltration; pyrolytic deposition;

D O I：

10.1016/S0008-6223(97)00118-8

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：

A new process for the rapid densification (1.5-2 mm h(-1) at 1000 degrees C for a carbon felt) of carbon porous preforms is described and physico-chemical data are given: density, porosity, and kinetics. The reinforcements chosen in this study are a Le Carbone Lorraine(R) rayon based felt (RVC 2000) and two types of PAN based carbon fibers (T 300 type and AS 4 Courtaulds). The composites are processed with cyclohexane as a precursor in the 900-1350 degrees C temperature range. The reasons for rapid densification by this peculiar process are discussed considering the thermal gradient which exists within the preform. (C) 1997 Elsevier Science Ltd.

引用

页码：1593 / 1598

页数：6