航空材料学报2011，Vol.31Issue(2)：95-98,4.DOI:10.3969/j.issn.1005-5053.2011.2.018
C/C和C/SiC复合材料的夏比冲击性能研究
Charpy Impact Properties of C/C and C/SiC Composties
摘要
Abstract
The charpy impact properties of C/C and C/SiC composites were investigated. The specimens were impacted with the knife radius of 2 mm at a linear velocity of 2.9 m/s. The fracture morphologies were examined by Optical Microscope and Scanning Electron Microscope. The results indicate that a linear relationship is present between the impact energy and the density of both composites. The composites with higher density failed at smaller impact energy and their fractured surface are characteristic of few pull-out fibers.Whereas, the fractured surface is rougher for the sample with a lower density, in dicating a large amount of fibers or fiber bundles were pulled out from the matrix.关键词
夏比冲击/冲击能量/密度Key words
charpy impact/ impact energy/ density分类
通用工业技术引用本文复制引用
严科飞,张程煜,乔生儒,韩栋,李玫..C/C和C/SiC复合材料的夏比冲击性能研究[J].航空材料学报,2011,31(2):95-98,4.基金项目
国家自然科学基金(50702045) （50702045）
高等学校博士学科点专项科研基金(20070699007) （20070699007）
新世纪优秀人才支持计划(NCET-08-0460) （NCET-08-0460）
