材料工程Issue(9)：82-86,91,6.
C/Mullite/Si-C-N复合材料的组织结构及其弯曲行为研究
Structure and Flexural Behavior of C/Mullite/Si-C-N Composite
摘要
Abstract
Carbon fiber reinforced Si-C-N matrix composite with a mullite interlayer (C/Mullite/Si-C-N) was fabricated. The flexural behavior of the composite was investigated at RT, 1300℃ and 1600℃ , respectively. The structure and fracture of the composite were observed by using scanning electron microscope (SEM) and transmission electron microscope (TEM) techniques. The results indicate that the fracture of the composite appears obvious characteristics of brittle fracture at RT and 1300℃ , and features of gliding fracture at 1600℃. At 1600℃ , both the flexural strength and the modulus show a remarkable decrease. The use of mullite interlayer makes the strength of C/Mullite/ Si-C-N obviously lower than that of the C/Si-C-N with pyrolytic carbon interlayer.关键词
弯曲强度/C/Si-C-N复合材料/莫来石/界面层Key words
flexural strength/ C/Si-C-N composites/ mullite/ interlayer分类
通用工业技术引用本文复制引用
卢国锋,乔生儒,焦更生,徐浩龙..C/Mullite/Si-C-N复合材料的组织结构及其弯曲行为研究[J].材料工程,2011,(9):82-86,91,6.基金项目
国家自然科学基金资助项目(50772089) （50772089）
渭师院科技培育计划(11YKP 018) （11YKP 018）
渭师院科研项目(10YKZ052,11YKZ003) （10YKZ052,11YKZ003）
