采用温度脉冲化学气相渗透沉积的方法制备了碳/碳化硅复合材料界面.以六甲基二硅胺烷(Hexamethyldisilazane,HMDS)为前驱体,以3k,三维四向的石墨化碳纤维编织体为预制体,通过强制流动热力学梯度化学气相渗透沉积的方法(FCVI)制备出密度为1.98g·cm-3的Cf/SiC复合材料.运用透射电子显微镜(TEM)对复合材料的界面微观结构进行了分析.复合材料的平均弯曲强度为458MPa,平均断裂韧性为19.8MPa·m1/2.应用扫描电子显微镜(SEM)对复合材料的断裂形貌进行了分析研究.
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