| 碳化硅氧化对硬铝基复合材料力学性能的影响 |
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| 引用本文： | 梅志,顾明元,吴人洁.碳化硅氧化对硬铝基复合材料力学性能的影响[J].华中科技大学学报(自然科学版),1998(7). |
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| 作者姓名： | 梅志 顾明元 吴人洁 |
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| 作者单位： | 华中理工大学材料科学与工程学院，上海交通大学材料科学系 |
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| 基金项目： | 国家自然科学基金,上海交通大学金属基复合材料国家重点实验室开放基金 |
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| 摘 要： | 分析比较了原始态碳化硅颗粒与莫来石纤维混杂增强硬铝和氧化态碳化硅颗粒与莫来石纤维混杂增强硬铝复合材料的微观结构与力学性能．结果发现，后者的弯曲强度明显低于前者，微观分析表明，后者发生界面反应生成脆性化合物并使基体中的时效强化相减少是其强度降低的原因．
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| 关 键 词： | 碳化硅氧化处理 莫来石 硬铝 力学性能 |
The Effect of Oxidation of SiC on the Mechanical Properties of 2024 Al Matrix Composite |
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| Mei Zhi Ph. D.,College of Materials Sci. & Eng.,HUST,Wuhan ,China. Cui Kun Gu Mingyuan Wu Renjie.The Effect of Oxidation of SiC on the Mechanical Properties of 2024 Al Matrix Composite[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1998(7). |
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| Authors: | Mei Zhi Ph D College of Materials Sci & Eng HUST Wuhan China Cui Kun Gu Mingyuan Wu Renjie |
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| Institution: | Mei Zhi Ph. D.,College of Materials Sci. & Eng.,HUST,Wuhan 430074,China. Cui Kun Gu Mingyuan Wu Renjie |
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| Abstract: | The mechanical properties of as received SiC particles and short mullite fibers reinforced 2024Al composite were compared with that of oxidized SiC particles and short mullite fibers reinforced 2024Al composite. It is found that the bending strength of the latter is obviously lower than that of the former. Microstructure analysis indicates that the strong interface reaction in latter, which results in the formation of brittle phase at the interface and the decrease of aging strengthening phase in the matrix, is responsible for the decrease of the strength. |
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| Keywords: | oxidation of SiC mullite 2024 Al mechanical properties |
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