FABRICATION OF CARBON-CARBON COMPOSITES BY FORCED FLOW-THERMAL GRADIENT CHEMICAL-VAPOR INFILTRATION

被引：36

作者：

VAIDYARAMAN, S ^{[1
]}

LACKEY, WJ ^{[1
]}

FREEMAN, GB ^{[1
]}

AGRAWAL, PK ^{[1
]}

LANGMAN, MD ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL,GEORGIA TECH RES INST,ATLANTA,GA 30322

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 06期

关键词：

D O I：

10.1557/JMR.1995.1469

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon fiber-carbon matrix composites were fabricated using the forced flow-thermal gradient chemical vapor infiltration (FCVI) process. The preforms for the infiltration were prepared by stacking 40 layers of carbon cloth in a graphite holder. The preforms were infiltrated with carbon using propylene or methane as a reactant, with hydrogen as a diluent. Composites with porosities as low as 7% have been processed within 8-12 h. The highest deposition rate obtained in the present study was similar to 3 mu m/h, which is more than an order of magnitude faster than the typical value of 0.1-0.25 mu m/h for the isothermal infiltration process.

引用

页码：1469 / 1477

页数：9