材料工程Issue(4)：37-39,3.
FCVI工艺制备SiCf/SiC复合材料结构与性能研究
A Study on Microstructure and Properties of SiCf/SiC Composite Fabricated by FCVI
朱时珍 1汪树军2
作者信息
- 1. 北京理工大学机械工程与自动化学院,
- 2. 石油大学北京化工学院,
- 折叠
摘要
Abstract
SiCf/SiC composite was fabricated by forced flow thermal-gradient chemical vapor infiltration (FCVI). The density of composite is 2.3g/cm3.The flexural strength and fracture toughness of SiCf/SiC compsites were tested: the flexural strength is 291 MPa, the fracture toughness is 11.4 MPa*m1/2. The microscopy structure was characterized by SEM, TEM and X-ray diffraction. The results show that SiC matrix fabricated by FCVI is β-SiC, which has sub-micron grain size and good crystallinity.And the toughening mechanism was also investigated by morphology of the fractrue surface.关键词
SiCf/SiC复合材料/FCVI/显微结构/增韧机制分类
通用工业技术引用本文复制引用
朱时珍,汪树军..FCVI工艺制备SiCf/SiC复合材料结构与性能研究[J].材料工程,2001,(4):37-39,3.
