研究了在不同烧结温度条件下制备的热压Ni-SiC-G复合材料结构和性能的差异.结果表明:烧结温度对试样的显微结构和力学性能有很大影响.根据SEM照片可将复合材料中SiCP/Ni之间固相反应的程度分成3种类型:部分反应、完全反应和过度反应.密度、硬度和抗弯强度随烧结温度的变化趋势较为一致:在1 100℃均达到极大值,在1 200℃均为最小值.在界面部分反应的前提下,材料的密度、硬度和抗弯强度在800℃达到最大值.
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