| Si3N4／Al反应烧结制备AIN／Al复合材料 |
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| 引用本文： | 王光辉,赵敬忠,谷臣清.Si3N4／Al反应烧结制备AIN／Al复合材料[J].硅酸盐通报,2005,24(6):40-42,75. |
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| 作者姓名： | 王光辉 赵敬忠 谷臣清 |
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| 作者单位： | 西安理工大学材料科学与工程学院,西安710048 |
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| 基金项目： | 陕西省教育厅科技创新资助项目（03JK139）. |
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| 摘 要： | 研究了采用Si，N4与Al的混合粉，经压制、烧结制备AIN／Al-Si复合材料的技术方法。试验结果表明：AIN的反应生成机制属于一种连续渐进式反应形成过程，即于高温下液相Al中的Al原予渗入Si3N4的晶体点阵取代Si原予而逐渐使之向AIN晶体点阵转化的过程。被取代的Si原予从固相Si3N4中析出，扩散溶入液相Al中，冷却后形成Al-Si舍金固溶体，一般呈网状分布于AIN晶体相的周围。新生成的AIN与Al-Si合金相之间表现出很好的界面亲和性。
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| 关 键 词： | Si3N4／Al反应烧结 AIN／Al复合材料 界面亲和性 |
Fabrication of AIN/Al Composites by Si3N4/Al Reaction Sintering |
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| Wang Guanghui, Zhao Jingzhong, Gu Chenqing.Fabrication of AIN/Al Composites by Si3N4/Al Reaction Sintering[J].Bulletin of the Chinese Ceramic Society,2005,24(6):40-42,75. |
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| Authors: | Wang Guanghui Zhao Jingzhong Gu Chenqing |
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| Abstract: | AIN/Al- Si composites were synthesized adopting mixed powder of Si3N4 and Al by pressing and sinttering. The results show that the formation mechanism of AIN is a continuous progressive process. The Si atoms substituted separate out from solid phase Si3N4, diffuse and dissolve liquid phase Al, and form Al - Si alloy solid solution after cooling, commonly distributing around AIN crystal by mode of reticulation. The newer formed AIN behaves finer interface affinity with Al - Si alloy. |
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| Keywords: | Si3N4/Al reaction sintering AIN/Al composite interface affinity |
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