| 原位反应热压烧结SiC/MoSi_2复合材料的力学性能研究 |
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| 引用本文： | 席俊杰,王利秋.原位反应热压烧结SiC/MoSi_2复合材料的力学性能研究[J].材料导报,2009,23(16). |
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| 作者姓名： | 席俊杰 王利秋 |
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| 作者单位： | 1. 郑州航空工业管理学院机电工程学院,郑州,450015
2. 中国建材装备有限公司,北京,100037 |
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| 摘 要： | 采用原位反应热压烧结工艺成功制备了不同SiC体积分数的SjC/MoSi2复合材料,研究了SiC/MoSi2复合材料的室温抗弯强度、断裂韧性随SiC体积分数变化的规律,分析了SiC/MoSi2复合材料的强韧化机理.结果表明,SiC的加入显著提高了MoSi2基复合材料的室温力学性能,SiC/MoSi2复合材料的抗弯强度和断裂韧性均优于纯MoSi2,并且随着SiC体积分数的增加而增大;SiC/MoSi2复合材料的强化机制主要是弥散强化和细晶强化,韧化机制主要是微裂纹增韧.
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| 关 键 词： | SiC/MoSi2复合材料 原位反应 热压烧结 力学性能 强韧化 |
Research on Mechanical Properties of SiC/MoSi_2 Composites Prepared by Technology of In-situ Reaction Hot-pressing Sintering |
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| XI Junjie,WANG Liqiu.Research on Mechanical Properties of SiC/MoSi_2 Composites Prepared by Technology of In-situ Reaction Hot-pressing Sintering[J].Materials Review,2009,23(16). |
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| Authors: | XI Junjie WANG Liqiu |
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| Affiliation: | XI Junjie1,WANG Liqiu2(1 School of Mechatronics Engineering,Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,2 China National Building Material Equipment Co.Ltd.,Beijing 100037) |
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| Abstract: | SiC/MoSi2 composites with different SiC volume fraction are successfully prepared by adopting technology of in-situ reaction hot-pressing sintering.The rules of room temperature bending strength and fracture toughness of SiC/MoSi2 composites are studied with SiC volume fraction.The strengthening and toughening mechanisms of SiC/MoSi2 composites are analyzed.The results show that SiC greatly improves the room temperature mechanical properties of MoSi2 matrix composites.The bending strength and fracture tough... |
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| Keywords: | SiC/MoSi_2 composites in-situ reaction hot-press sintering mechanical properties strengthening and toughening |
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