轴棒法C／C复合材料室温及高温拉伸性能研究  

TENSILE PROPERTIES AT ROOM TEMPERATURE AND HIGH TEMPERATURES OF C/C COMPOSITES WEAVEN WITH CARBON FIBER AND AXIAL CARBON RODS

作　　者：冯阳阳[1] 刘维鹏 崔红[1] 李瑞珍[1] 吴书锋[1] 

机构地区：[1]西安航天复合材料研究所,陕西西安710025 [2]西安康本材料有限公司,陕西西安710089

出　　处：《炭素》2011年第2期34-37,共4页Carbon

摘　　要：研究了轴棒法C／C复合材料在室温及高温下的轴向拉伸性能，并用扫描电镜观察了高温拉伸试样的断口形貌。结果表明，轴棒法C／C复合材料在室温及高温下的断裂模式不同，且高温下的拉伸强度高于室温下的拉伸强度；以常压炭化结束的C／C复合材料开孔率变大，室温及高温下的拉伸强度小于以高压炭化结束的C／C复合材料。The axial tensile properties at room temperature and high- temperature of C/C composites woven with carbon fiber and axial carbon rods were studied. The fracture surface of tensile samples at high- temperature were investigated by SEM. The results show that the fracture patterns of the axial tensile samples at room temperature and high- temperature of the C/C composites are different, and the tensile strength at high -temperature is higher than that at room temperature. The C/C composite made by normal pressure carbonization as its final process has more pore and microcracks, and its tensile strength both at room temperature and high- temperature is lower than that of the C/C composites taken high pressure carbonization as its final process.

关 键 词：轴棒法 C/C复合材料 拉伸性能 温度 处理工艺 

分 类 号：TQ165[化学工程—高温制品工业]