| 放电等离子烧结法制备金刚石/Cu复合材料 |
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| 引用本文： | 淦作腾,任淑彬,沈晓宇,何新波,曲选辉,郭佳.放电等离子烧结法制备金刚石/Cu复合材料[J].粉末冶金材料科学与工程,2010,15(1):59-63. |
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| 作者姓名： | 淦作腾 任淑彬 沈晓宇 何新波 曲选辉 郭佳 |
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| 作者单位： | 北京科技大学,新材料技术研究院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(50774005) |
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| 摘 要： | 通过真空镀铬对金刚石颗粒进行表面改性,采用放电等离子烧结法(SPS)制备改性金刚石/Cu复合材料;研究金刚石的体积分数、工艺参数以及金刚石颗粒表面改性对复合材料导热性能的影响。结果表明,烧结温度、混料时间以及金刚石颗粒的体积分数都会影响材料的致密度,金刚石颗粒的体积分数还会影响材料的界面热阻,而致密度和界面热阻是影响该复合材料导热性能的2个重要因素;对金刚石颗粒进行真空镀铬表面改性,可改善颗粒与铜基体的润湿性,降低界面热阻。在一定的工艺条件下,镀铬金刚石体积分数为60%时,改性金刚石/Cu复合材料具有很高的致密度,其热导率达到503.9W/(m.K),与未改性的金刚石/Cu复合材料相比,热导率提高近2倍,适合做为高导热电子封装材料。
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| 关 键 词： | 金刚石/Cu复合材料 SPS 热导率 致密度 |
Research on diamond/Cu composites fabricated by spark plasma sintering |
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| GAN Zuo-teng,REN Shu-bin,SHEN Xiao-yu,HE Xin-bo,QU Xuan-hui,GUO Jia.Research on diamond/Cu composites fabricated by spark plasma sintering[J].materials science and engineering of powder metallurgy,2010,15(1):59-63. |
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| Authors: | GAN Zuo-teng REN Shu-bin SHEN Xiao-yu HE Xin-bo QU Xuan-hui GUO Jia |
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| Affiliation: | Advanced Materials and Technologies Institute;University of Science and Technology Beijing;Beijing 100083;China |
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| Abstract: | Surface modified diamond/Cu composites were fabricated by spark plasma sintering (SPS) using the surface modified diamond plated chrome in vacuum as raw material. The effect of compositional formulating,process parameters and surface modification of diamond particles on the thermal conductivity of the composites was studied. The sintering temperature,mixing time of raw material powder and the valume fraction of diamond particle all have effects on the relative density. Diamond particle volume fraction can a... |
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| Keywords: | diamond/Cu composites spark plasma sintering thermal conductivity relative density |
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