Hi-nicalon™ fiber-reinforced CVI-SiC matrix composites:: I.: Effects of PyC and PyC-SiC multilayers on the fracture behaviors and flexural properties

被引：36
|
作者：
Yang, W [1 ]
Araki, H
Noda, T
Park, JY
Katoh, Y
Hinoki, T
Yu, JN
Kohyama, A
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Korea Atom Energy Res Inst, Taejon 305353, South Korea
[3] Kyoto Univ, ACE, CREST, Inst Adv Energy, Kyoto 6110011, Japan
[4] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
MATERIALS TRANSACTIONS | 2002年 / 43卷 / 10期
关键词：
Hi-Nicalon fiber; chemical vapor infiltration process; SiC/SiC composites; pyrolytic carbon and silicon carbide interlayers; flexural properties;
D O I：
10.2320/matertrans.43.2568
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The flexural properties of 2D plain-woven Hi-Nicalon(TM) fiber reinforced SiC/SiC composites with various PyC and PyC-SiC multilayers were studied at ambient temperature. The composites were fabricated by chemical vapor infiltration process (CVI). The interlayers were deposited by isothermal CVI process from methane for PyC layer and CH3SiCl3 (NITS) for SiC layer. The effects of the various interlayers on the fracture behaviors and flexural properties were investigated. The PyC layer thickness showed significant influence on the flexural strength and an optimum PyC layer thickness was defined to be similar to150 nm. Fiber/matrix interfacial debonding occurred at the very fiber surface for single PyC layered composites while several interfacial debonding and cracking behaviors were observed with the PyC-SiC multilayered composites.
引用
收藏
页码：2568 / 2573
页数：6
相关论文
共 33 条
1234