孔隙率对碳纤维复合材料超声衰减系数和力学性能的影响

被引:37
作者
刘玲
路明坤
张博明
王殿富
郑岩
张春清
机构
[1] 哈尔滨工业大学复合材料研究所
[2] 哈尔滨玻璃钢研究院
关键词
复合材料; 孔隙率; 性能; 吸收系数;
D O I
10.13801/j.cnki.fhclxb.2004.05.022
中图分类号
TB332 [非金属复合材料];
学科分类号
摘要
复合材料的工艺过程对最终产品的力学性能具有决定性影响 ,但其机理十分复杂。通过设置一系列固化压力历程以产生不同水平的孔隙率 ,采用超声C扫描、显微镜分析和酸解法对孔隙的分布、形状、尺寸和体积含量进行了定性和定量表征。讨论了孔隙率对层压板层间剪切性能、弯曲性能和拉伸性能的影响规律 ,获得了性能下降的临界孔隙率值。结果表明 :孔隙率对性能的影响只受孔隙含量、分布、尺寸和形状等的影响 ,而与产生方式没有直接联系。本文作者的研究将工艺参数、孔隙率和性能有机地联系起来 ,体现了复合材料设计、制备与性能一体化的特点
引用
收藏
页码:116 / 121
页数:6
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