引用本文:
朱景川, 来忠红, 王丽艳, 李明伟, 尹钟大. 原位反应合成Mo-Si化合物系复合材料[J]. 物理化学学报,
2002, 18(01): 66-69.
doi:
10.3866/PKU.WHXB20020115
Citation: Zhu Jing-Chuan, Lai Zhong-Hong, Wang Li-Yan, Li Ming-Wei, Yin Zhong-Da. Mo-Si Compound Composites Synthesized by In Situ Reaction[J]. Acta Physico-Chimica Sinica, 2002, 18(01): 66-69. doi: 10.3866/PKU.WHXB20020115
Citation: Zhu Jing-Chuan, Lai Zhong-Hong, Wang Li-Yan, Li Ming-Wei, Yin Zhong-Da. Mo-Si Compound Composites Synthesized by In Situ Reaction[J]. Acta Physico-Chimica Sinica, 2002, 18(01): 66-69. doi: 10.3866/PKU.WHXB20020115
原位反应合成Mo-Si化合物系复合材料
摘要:
采用反应烧结法原位合成了MoSi系化合物复合材料，利用X射线衍射仪、扫描电镜和电子探针等考察了材料的显微结构和相组成.结果表明，随原料粉中Mo含量的增加， MoSi系反应生成物依次向MoSi2→Mo5Si3→Mo3Si变化；各相分布较为均匀，组织致密，晶粒细小.
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关键词:
- Mo-Si系化合物;反应烧结;显微组织
English
Mo-Si Compound Composites Synthesized by In Situ Reaction
Abstract:
MoSi compound composites were synthesized by in situ reaction hot pressing. Their microstructure and phase composition were analyzed by means of scanning electron microscope(SEM), electron probe microanalyzer(EPMA) and Xray diffractometer(XRD). The results indicate that the reaction products in MoSi system vary according to the order MoSi2→Mo5Si3→Mo3Si with increasing content of Mo in mixed powders. The sintered materials are nearly fully densified except the Mo3SiMo composite,exhibiting fine and homogeneous microstructures. Both MoSi2Si and MoSi2Mo5Si3 materials have an equivalent volume fraction and display an“infiltrationflow structure”. In Mo3SiMo composite, the excess Mo phase exists in “islandstructure”.
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