| “化学炉”辅助燃烧原位合成SiC/MoSi_2复合材料 |
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| 引用本文： | 颜建辉,唐思文,张厚安.“化学炉”辅助燃烧原位合成SiC/MoSi_2复合材料[J].矿冶工程,2008,28(1):78-80. |
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| 作者姓名： | 颜建辉 唐思文 张厚安 |
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| 作者单位： | 1. 湖南科技大学,机电工程学院,湖南,湘潭,411201;中南大学,粉末冶金国家重点实验室,湖南,长沙,410083
2. 湖南科技大学,机电工程学院,湖南,湘潭,411201 |
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| 基金项目： | 国家自然科学基金，湖南省教育厅科研项目 |
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| 摘 要： | 以Mo、Si和C单质粉为原料,采用自蔓延原位合成技术制备10%SiC、20%SiC(体积分数)强韧化MoSi2复合材料,并从理论上计算了自蔓延燃烧反应绝热温度.结果表明,常规自蔓延能够合成10%SiC/MoSi2复合粉体,而通过"化学炉"辅助燃烧能够合成20%SiC/MoSi2材料.复合粉末主要由MoSi2和SiC相组成,SiC颗粒分布均匀,与MoSi2基体结合良好,其断裂机理为穿晶断裂.
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| 关 键 词： | SiC/MoSi2复合材料 化学炉 原位合成 |
| 文章编号： | 0253-6099（2008）01-0078-03 |
| 收稿时间： | 2007-07-21 |
| 修稿时间： | 2007年7月21日 |
In-situ Synthesis of SiC/MoSi_2 Composites by "Chemical Oven"-aided Combustion |
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| YAN Jian-hui,TANG Si-wen,ZHANG Hou-an.In-situ Synthesis of SiC/MoSi_2 Composites by "Chemical Oven"-aided Combustion[J].Mining and Metallurgical Engineering,2008,28(1):78-80. |
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| Authors: | YAN Jian-hui TANG Si-wen ZHANG Hou-an |
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| Affiliation: | 1.Department of Mechanic Engineering and Automation;Hunan University of Science and Technology;Xiangtan 411201;Hunan;China;2.State Key Laboratory for Powder Metallurgy;Central South University;Changsha 410083;China |
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| Abstract: | Strengthened and toughened MoSi2 composites with 10% SiC and 20% SiC(volume fraction) were fabricated by high temperature self-propagating synthesis with Mo,Si and C elementary powders as raw materials.The adiabatic temperature of combustion reaction was calculated theoretically.The results indicated that the synthesis of 10%SiC/MoSi2 composite powders was possible by conventional high temperature self-propagating.However,20%SiC/MoSi2 composites could be synthesized by "Chemical Oven"-aided combustion metho... |
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| Keywords: | MoSi2 SiC |
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