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Room and Elevated Temperature Tensile Properties of SiCf/TC17 Composite

机译：SiCf / TC17复合材料的室温和高温拉伸性能

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SiQ/TC17 composite was prepared from precursor wires produced by magnetron sputtering. The results showed that full density of the composites was achieved and no porosity was detected. The fibers were arranged well forming a nearly hexagonal array. The longitudinal tensile properties of the SiCr/TC17 composite have been investigated at room and elevated temperature. The tensile strength of the composite was significantly increased,to 1717 MPa and 1341 MPa at room temperature and 500°C respectively,due to the incorporation of SiC fiber. Scanning electron microscopy (SEM) was used to study the matrix deformation, interfacial debonding and fiber pullout. Different damage models have been obtained by comparing the stress-strain curves and fractographs of tensile samples at room and elevated temperatures. The damage processes of SiC1/ TC17 composite under tensile loading at room and elevated temperature are discussed.
机译：SiQ / TC17复合材料是由磁控溅射生产的前驱线制备的。结果表明，复合材料达到了全密度，没有发现孔隙。纤维排列得很好，形成了近似六边形的阵列。已经在室温和高温下研究了SiCr / TC17复合材料的纵向拉伸性能。由于掺入了SiC纤维，复合材料的拉伸强度在室温和500℃下显着提高，分别达到1717 MPa和1341 MPa。扫描电子显微镜（SEM）用于研究基体变形，界面剥离和纤维拉拔。通过比较室温和高温下拉伸样品的应力-应变曲线和分形图，可以获得不同的损伤模型。讨论了在室温和高温下SiC1 / TC17复合材料在拉伸载荷作用下的损伤过程。

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