| 晶须含量对SiC_W／AI复合材料性能影响规律的研究 |
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| 引用本文： | 耿林,姚忠凯,张涛.晶须含量对SiC_W／AI复合材料性能影响规律的研究[J].兵器材料科学与工程,1995(4). |
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| 作者姓名： | 耿林 姚忠凯 张涛 |
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| 作者单位： | 哈尔滨工业大学 |
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| 摘 要： | 采用挤压铸造法制备了不同晶须含量的ＳｉＣ＿Ｗ／Ａｌ复合材料，并测试和分析了铝合金和不同晶须含量ＳｉＣ＿Ｗ／Ａｌ复合材料的力学和物理性能。结果表明，随晶须含量的增加，ＳｉＣ＿Ｗ／Ａｌ复合材料的抗拉强度和弹性模量明显提高，并且比强度和比刚度也有所提高；热膨胀系数和热传导率随晶须含量提高而降低，并且热传导率与热膨胀系数比值也略有降低。
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| 关 键 词： | 碳化硅，晶须，铝，复合材料 |
EFFECTS OF WHISKER VOLUME FRACTION ON PROPERTIES OF SiC_W/Al COMPOSITES |
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| Geng Lin.EFFECTS OF WHISKER VOLUME FRACTION ON PROPERTIES OF SiC_W/Al COMPOSITES[J].Ordnance Material Science and Engineering,1995(4). |
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| Authors: | Geng Lin |
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| Abstract: | The SiC_W/Al composites were fabricated by squeeze casting technique, and the mechanical-physical prcperties of the Al alloy and SiC_W/Al composites with different whisher volume fraction were measured and analyzed. The results show that with the increase of the whisker volume fraction,the tensile strength and modulus of the SiC_W/Al composites are obviously increased,and the specific strength and specific modulus of the composites are also increased. The results also show that with the increace of the whisker volume fraction, the thermal expansion ccefficient and thermal conductivity of the SiC_W/Al composites are decreased,and the thermal conductivity to thermal expansion coefficient ratio of the composite is also decreased. |
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| Keywords: | silicon carbide whisker aluminium composite |
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