Effect of nanofibers at surface of carbon fibers on microstructure of carbon/carbon composites during chemical vapor infiltration
来源期刊：中南大学学报(英文版)2014年第7期
论文作者：肖鹏 CHEN Jie(陈洁) XU Xian-feng(徐先锋) LU Xue-feng(卢雪峰)
文章页码：2590 - 2595
Key words：carbon nanofiber; SiC nanofiber; pyrocarbon; interface bonding
Abstract: Before densification by chemical vapor infiltration, carbon or SiC nanofibers were grown on the surface of carbon fibers by catalytic chemical vapor deposition using electroplated Ni as catalyst. The modification and mechanism of nanofibers on the pyrocarbon deposition during chemical vapor infiltration were investigated. The results show that the nanofibers improve the surface activity of the carbon fibers and become active nucleation centers during chemical vapor infiltration. They can induce the ordered deposition of pyrocarbon and adjust the interface bonding between pyrocarbon and carbon fibers during the infiltration.
XIAO Peng(肖鹏), CHEN Jie(陈洁), XU Xian-feng(徐先锋), LU Xue-feng(卢雪峰)
(State Key Laboratory of Powder Metallurgy (Central South University), Changsha 410083, China)
Abstract:Before densification by chemical vapor infiltration, carbon or SiC nanofibers were grown on the surface of carbon fibers by catalytic chemical vapor deposition using electroplated Ni as catalyst. The modification and mechanism of nanofibers on the pyrocarbon deposition during chemical vapor infiltration were investigated. The results show that the nanofibers improve the surface activity of the carbon fibers and become active nucleation centers during chemical vapor infiltration. They can induce the ordered deposition of pyrocarbon and adjust the interface bonding between pyrocarbon and carbon fibers during the infiltration.
Key words:carbon nanofiber; SiC nanofiber; pyrocarbon; interface bonding
