| 液态反应合成Mg-Li-MgO/Mg_2Si复合材料的组织与性能 |
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| 引用本文： | 于化顺,闵光辉,王大庆,陈熙琛.液态反应合成Mg-Li-MgO/Mg_2Si复合材料的组织与性能[J].稀有金属,2000(1). |
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| 作者姓名： | 于化顺 闵光辉 王大庆 陈熙琛 |
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| 作者单位： | 山东工业大学材料学院!济南250061(于化顺，闵光辉)，山东师范大学!济南250061(王大庆)，中科院物理所!北京100084(陈熙琛) |
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| 摘 要： | 用ＤＴＡ对ＳｉＯ２ 与ＭｇＬｉ 合金反应合成复合材料的热力学进行了研究， 证明反应能够进行。检测结果表明反应生成的粒子尺寸细小且分布均匀。复合材料的强度、硬度、弹性模量明显提高； 该复合材料的延伸率低于基体合金， 但仍可达到较高水平（ ＞ ４％） ， 高于Ａｌ２Ｏ３ 及ＳｉＣ纤维增强复合材料。
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| 关 键 词： | Mg-Li合金 自生复合材料 反应合成法 组织 力学性能 |
Microstructure and Mechanical Properties of Mg Li MgO/Mg_2SiComposite Prepared by Reaction Synthesis in Liquid |
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| Yu Huashun ,Min Guanghui ,Wang Daqing and Chen Xichen.Microstructure and Mechanical Properties of Mg Li MgO/Mg_2SiComposite Prepared by Reaction Synthesis in Liquid[J].Chinese Journal of Rare Metals,2000(1). |
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| Authors: | Yu Huashun Min Guanghui Wang Daqing and Chen Xichen |
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| Affiliation: | Yu Huashun 1,Min Guanghui 1,Wang Daqing 2 and Chen Xichen 3 |
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| Abstract: | Abstract: The thermodynamics of reaction synthesis composite of Mg Li alloys with SiO 2 was studied with DTA. The microstructure and mechanical properties were also measured. It is shown that fine MgO/Mg 2Si reinforcing particles a formed and uniform particle distribution is obtained. The strength, hardness and modulus of the composites are much higher than that of matrix alloy. The elongation of the composites is lower than that of the matrix, but it keeps a high level (>4%) and is higher than that of the composite reinforced with Al 2O 3 and SiC fibres. |
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| Keywords: | Mg Li alloys In situ composites Reaction synthesis Microstructure Mechanical properties |
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