用Si,Mo和Nb作为起始原料通过预烧结、氮化反应和N2气氛下的热压烧结制备出Si3N4/MoSi2/NbN复合材料,借助扫描电镜和X射线衍射等分析手段对各阶段样品的相组成和显微组织进行了表征,结果表明:在预烧结阶段获得了NbN, MoSi2和未反应的Si相;随着温度的提高,氮化反应生成了α-Si3N4和少量β-Si3N4;最后经热压烧结制备了Si3N4/MoSi2/NbN复合材料.
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