| 纤维长度和体积分数对Al2O3-SiO2 / Al2Si微屈服行为的影响 |
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| 引用本文： | 刘贯军,李文芳,杜军,谢勇.纤维长度和体积分数对Al2O3-SiO2 / Al2Si微屈服行为的影响[J].复合材料学报,2006,23(6):103-107. |
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| 作者姓名： | 刘贯军 李文芳 杜军 谢勇 |
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| 作者单位： | [1]华南理工大学机械工程学院,广州510640 [2]河南科技学院机电学院,新乡453003 |
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| 摘 要： | 以通过浸渗挤压工艺制备的Al2O3-SiO2 / Al2Si 复合材料为研究对象, 使用配备有精度达10 - 7位移测量装置的Inst ron5569 电子拉伸试验机, 并采用连续加载法, 详细研究了晶化硅酸铝短纤维的体积分数和短纤维长度对铝硅基复合材料微屈服行为的影响规律, 并定性分析了原因。结果表明: 随着晶化硅酸铝短纤维体积分数的逐渐增大, 铝硅基复合材料的微屈服强度逐渐减小, 但其宏观屈服强度和弹性模量却逐渐增大; 随着晶化硅酸铝短纤维长度的逐渐增加, 铝硅基复合材料的微屈服强度逐渐减小, 但其宏观屈服强度却逐渐增大。
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| 关 键 词： | 铝硅基复合材料 微屈服强度 硅酸铝纤维 |
| 文章编号： | 1000-3851（2006）06-0103-05 |
| 收稿时间： | 11 23 2005 12:00AM |
| 修稿时间： | 2005-11-232006-03-23 |
Effect of length and volume fraction of the reinforcing f ibers on micro yield behaviorsof Al2O3-SiO2 / Al2Si metal matrix composites |
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| LIU Guan-jun,LI Wen-fang,DU Jun,XIE Yong.Effect of length and volume fraction of the reinforcing f ibers on micro yield behaviorsof Al2O3-SiO2 / Al2Si metal matrix composites[J].Acta Materiae Compositae Sinica,2006,23(6):103-107. |
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| Authors: | LIU Guan-jun LI Wen-fang DU Jun XIE Yong |
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| Affiliation: | 1. College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China; 2. Department of Mechanical and Electronic Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China |
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| Abstract: | The effects of volume fraction of alumina silicate short fibers in crystal and their length on micro yield behaviors of Al_(2)O_3-SiO_2(sf)/Al-Si metal matrix composites(MMCs) fabricated with squeezing cast were investigated by continuous loading on an Instron5569 tester with measuring installation of accuracy 10~(-7).It is shown that the micro yield strength of the MMCs decreases while the macro yield strength and Young's modulus increase when the volume fraction of alumina silicate short fibers increases and the micro yield strength of the MMCs decreases while the macro yield strength increases when the length of the short fibers in crystal increases. |
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| Keywords: | Al-Si metal matrix composite micro yield strength alumina silicate short fiber |
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