固-液共存状態を利用してSPS成形したダイヤモンド粒子分散型Al基複合材料の熱伝導率 Thermal Conductivity of Diamond Particle Dispersed Aluminum Matrix Composites Produced in Solid-Liquid Co-Existent State by SPS

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Diamond-particle-dispersed-aluminum (Al) matrix composites were fabricated in solid-liquid coexistent state by Spark Plasma Sintering (SPS) process from the mixture of diamond and pure Al powders and that of diamond and 5056-type Al-Mg alloy powders. The microstructures and thermal conductivities of the composites fabricated were examined. These composites were all well consolidated at 813K for 2.1ks in SPS process. No reaction at the interface between the diamond particle and the Al matrix was observed by scanning electron microscopy for the composites fabricated under the sintering conditions employed in the present study. The relative packing density of the diamond-Al composite fabricated was 97% or higher in a volume fraction range of diamond between 25 and 45.5%. Thermal conductivity of the diamond-Al composite containing 45.5 vol.% diamond reached 403W/mK, approximately 76% the theoretical thermal conductivity estimated using Maxwell-Euckenís equation.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 55(2), 96-100, 2008-02-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10021172648
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    9390036
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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