三维机织预制体结构对C/C复合材料力学性能的影响  

Influence of 3D Woven Preform Architectures on Mechanical Properties of C/C Composites

作　　者：杨彩云[1] 胡振英[1] 周红英[2] 

机构地区：[1]天津工业大学纺织学院天津市和教育部共建先进纺织复合材料重点实验室,天津300160 [2]西安航天复合材料研究所,西安710025

出　　处：《材料工程》2009年第9期29-32,37,共5页Journal of Materials Engineering

基　　金：天津市自然科学基金资助项目(06YFJMJC03000)

摘　　要：本工作设计并用炭纤维织造了两种不同结构的三维预制体,即三维角联锁结构(JLS)和三向正交结构(SZJ),采用化学气相渗透(CVI)致密和液相树脂浸渍/炭化的增密工艺,制备出C/C复合材料,测试并对比分析了拉伸性能和冲剪性能。结果表明:预制体结构对C/C复合材料的力学性能有很大影响,同时决定拉伸断裂破坏模式。三向正交结构C/C复合材料的力学性能好于三维角联锁结构的C/C复合材料。Two different kinds of structural preforms were designed and manufactured using carbon fi- ber, which were 3D layer-to-layer angle-interlock weave （JLS） and 3D solid orthogonal panel weave （SZJ）. C/C composites were made by chemical vapor infiltration （CVI） and liquid resin impregnation. The influences of preform architectures on mechanical properties of C/C composites were explored. The tensile and shear properties of two materials were measured and analyzed. The results show that there is great influence of reinforcement architectures on the mechanical properties of the C/C composites greatly, besides on tension broken model. The C/C composites reinforced by 3D solid orthogonal panel preform behave better in mechanical properties than that reinforced by 3D layer-to-layer angleinterlock preform.

关 键 词：C/C复合材料 三维机织预制体 力学性能 增强体结构 拉伸断裂模式 

分 类 号：TB332[一般工业技术—材料科学与工程]