| 原位无压反应烧结制备SiC-MoSi2复合材料及其性能研究 |
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| 引用本文： | 许剑光,侯周福,唐果宁. 原位无压反应烧结制备SiC-MoSi2复合材料及其性能研究[J]. 矿冶工程, 2009, 29(4) |
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| 作者姓名： | 许剑光 侯周福 唐果宁 |
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| 作者单位： | 湖南科技大学,先进材料制备与应用技术研究所,湖南,湘潭,411201;湖南科技大学,先进材料制备与应用技术研究所,湖南,湘潭,411201;湖南科技大学,先进材料制备与应用技术研究所,湖南,湘潭,411201 |
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| 基金项目： | 湖南省自然科学基金，湖南科技大学2008年研究生创新基金 |
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| 摘 要： | 利用原位无压反应烧结方法制备了不同配比的SiC/MoSi2复合材料,分析了烧结工艺对产物的影响,研究了原位生成的SiC颗粒对MoSi2基体材料室温力学性能和显微结构的影响.结果表明:原位反应烧结制备SiC/MoSi2的工艺是可行的,反应生成的适量SiC颗粒细化了基体晶粒,改善了其力学性能;与该工艺下制备的纯MoSi2相比,含10%SiC的SiC/MoSi2复合材料室温抗弯强度提高了181%,该复合材料的强化机制为细晶强化和弥散强化,韧化机制为细晶增韧和裂纹偏转.
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| 关 键 词： | SiC/MoSi2复合材料 SiC MoSi2 原位无压反应 力学性能 强化机制 |
Preparation and Characterization of SiC-MoSi_2 Composite Materials by In-situ Pressureless Reaction Sintering |
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| XU Jian-guang,HOU Zhou-fu,TANG Guo-ning. Preparation and Characterization of SiC-MoSi_2 Composite Materials by In-situ Pressureless Reaction Sintering[J]. Mining and Metallurgical Engineering, 2009, 29(4) |
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| Authors: | XU Jian-guang HOU Zhou-fu TANG Guo-ning |
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| Affiliation: | Advanced Materials Synthesis and Application Technology Laboratory;Hunan University of Science and Technology;Xiangtan 411201;Hunan;China |
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| Abstract: | SiC/MoSi 2 composites with different volume fraction of SiC particles were prepared by in-situ pressureless reaction sintering and the influence of sintering technique on the product was analysised.The effects of in-situ SiC particles on room temperature mechanical properties and microstructure of MoSi 2 basis material were investigated.The results show that the process of preparing SiC/MoSi 2 by in-situ reaction sintering is feasible.The matrix grains were refined by appropriate amount SiC particles obtain... |
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| Keywords: | SiC MoSi2 |
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