分析了TiB2-TiC陶瓷基复合材料的原位生成机理,利用普通的热压烧结设备,以TiH2-B4C为原料原位合成了高性能的TiB2-TiC陶瓷基复合材料。TEM和X射线衍射的研究结果表明:原位合成的复合材料中TiB2为长柱状的显微形貌,从而提高了材料的断裂韧性。
The principle of in-situ formation of TiB2-TiC ceramics matrix composites was analyzed in this paper. The TiB2-TiC ceramics matrix composites of high performance were fabricated by hot pressing from TiH2-B4C. The results show that the TiB2 in microstructure presents long column morphologies which improve fracture toughness of the composite.
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