Interlaminar Shear Strength for Three Kinds of Ceramic Matrix Composites at 1173K

摘要：

　　Interlaminar shear strength (ILSS) of a two-dimensional carbon fiber reinforced silicon carbide (2D-C/SiC) composite,two-and-a-half-dimensional carbon fiber-reinforced silicon carbide (2.5D-C/SiC) composite along the warp and weft directions and two-dimensional silicon carbide fiber reinforced silicon carbide (2D-SiC/SiC) composite were investigated by the double-notch shear (DNS) test at 1173K in air.The microstructure and fracture morphologies of the DNS specimens were observed by a scanning electron microscope (SEM) and an optical microscope.Experimental data shows that ILSS of 2.5D-C/SiC along the warp direction is not only lower than that of the weft direction,but also lower than 2D-C/SiC.Besides,ILSS for 2D-SiC/SiC is higher than that of the 2D-C/SiC.The possible reasons are analyzed through SEM images,optical micrographs and results of ILSS at 1173K in air.Finally the fracture mechanism is discussed.

关键词： Ceramic matrix composites ILSS Fracture morphology

作者: Jianjie GOU Chengyu ZHANG Shengru QIAO Xuanwei WANG

作者单位: National key Laboratory of Thermostructure Composite Materials,Northwestern Polytechnical University,Xi’an 710072,P.R.China

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-8

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）