| 镁锂基复合材料界面结构及热力学分析 |
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| 引用本文： | 马春江,张获,覃继宁,施忠良,胡文斌,吴人洁. 镁锂基复合材料界面结构及热力学分析[J]. 稀有金属, 1999, 23(6): 401-404 |
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| 作者姓名： | 马春江 张获 覃继宁 施忠良 胡文斌 吴人洁 |
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| 作者单位： | 上海交通大学金属基复合材料国家重点实验室,上海,200030 |
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| 摘 要： | 制备了碳纤维及ＳｉＣ晶须增强的Ｍｇ８Ｌｉ１Ａｌ基复合材料。利用透射电镜，高分辨电子显微镜研究了Ｍｇ８Ｌｉ１Ａｌ／ＳｉＣｗ复合材料的界面结构，发现ＳｉＣ晶须与基体合金界面结合良好，没有明显的反应物。
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| 关 键 词： | 镁锂基 复合材料 界面反应 热力学 碳化硅 |
| 修稿时间： | 1998-12-05 |
Study on Thermodynamics and Interfacial Structure of Mg-Li Based Composites |
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| Ma Chunjiang,Zhang Di,Qin Jining,Shi Zhongliang,Hu Wenbin,Wu Renjie. Study on Thermodynamics and Interfacial Structure of Mg-Li Based Composites[J]. Chinese Journal of Rare Metals, 1999, 23(6): 401-404 |
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| Authors: | Ma Chunjiang Zhang Di Qin Jining Shi Zhongliang Hu Wenbin Wu Renjie |
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| Abstract: | Abstract: Mg8Li1Al/SiC w composites were manufactured by vacuum infiltration. Study on interfacial structure by TEM and HREM method confirmed that there are no any apparent reactant on the interface. Tensile test shows that the tensile strength are increased by 50%. After being solution treated, the tensile strength increases to 278 MPa, greater 41.3% than as cast composites. The Gibbs free energy of reaction between Mg Li Al matrix and carbon fibres, Al 2O 3 fibres, SiC were calculated. The results showed that there is little thermodynamics driving force for the interaction of Mg Li Al matrix and SiC whiskers. |
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| Keywords: | Mg Li composites Interfacial structure Thermodynamics |
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