细编穿刺C/C复合材料不同层次界面特性研究
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Keywords: C/C,复合材料,纤维/基体界面,纤维束/基体界面,结合强度
Abstract:
针对细编穿刺C/C复合材料中单丝/碳基体和纤维束/碳基体不同层次界面结构特性,分别设计、建立了表征这两个层次界面结合性能的原位顶出仪,并将界面结合性能与C/C复合材料层间剪切强度测试进行了比较。利用该原位技术,研究了不同工艺参数条件下C/C复合材料这两个层次界面结合性能的关系,并讨论了它们对C/C复合材料拉伸强度的影响。表明:本文中所建立的单纤维和整束纤维顶出技术可用于定量表征C/C复合材料的不同层次界面粘合性能。不同层次界面结合状态在一定程度上对材料宏观力学性能的影响是不同的。
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