Thermal Conductivity of Diamond Particle Dispersed Aluminum Matrix Composites Produced in Solid-Liquid Co-Existent State by SPS

• Mizuuchi Kiyoshi

  Osaka Municipal Technical Research Institute

• Inoue Kanryu

  Materials Science & Engineering, University of Washington

• Agari Yasuyuki

  Osaka Municipal Technical Research Institute

• Morisada Yoshiaki

  Osaka Municipal Technical Research Institute

• Sugioka Masami

  Osaka Municipal Technical Research Institute

• Itami Masao

  Osaka Municipal Technical Research Institute

• Kawafune Isao

  Osaka Municipal Technical Research Institute

• Kawahara Masakazu

  SPS SYNTEX INC.

• Makino Yukio

  Energy Transfer Dynamics, Materials Processing System, Joining and Welding Research Institute Osaka University

Bibliographic Information

Other Title

• 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
• 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
• コ エキ キョウソン ジョウタイ オ リヨウシテ SPS セイケイシタ ダイヤモンド リュウシ ブンサンガタ Alキ フクゴウ ザイリョウ ノ ネツ デンドウリツ

Abstract

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.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 55 (2), 96-100, 2008

  Japan Society of Powder and Powder Metallurgy

Keywords

• thermal conductivity
• spark plasma sintering
• pulsed current
• aluminum
• diamond
• composite

Details

• CRID: 1390001206309491840
• NII Article ID: 10021172648
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.55.96
• COI: 1:CAS:528:DC%2BD1cXis1Gjt78%3D
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 9390036
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9390036
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed