各種粉末表面への無電解めっき処理と放電焼結利用による高性能焼結体の作製 Preparation of High Performance Sintered Compacts by Utilization of Both Electroless Plating Treatment and Spark Sintering to Some Powders

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The spark sintering technique was utilized to produce high performance compacts consisting of (1) metal, W, Ti; (2) carbides, WC, Cr<SUB>3</SUB>C<SUB>2</SUB>; (3) oxide, Al<SUB>2</SUB>O<SUB>3</SUB>; or (4) sulfide, WS<SUB>2</SUB>; using their powders which were electroless Ni or Sn plated as their surface treatment. The sintered compacts produced from the electroless plated powders showed excellent mechanical and oxidation properties which were evaluated by Charpy impact, tensile, hardness, friction and high temperature oxidation tests, compared with compacts produced by elemental powder blending method. As the alloying or binder element, Ni or Sn was plated uniformly on the surfaces of some powders, which resulted in the successful achievements as follows: (1) the excellent sinterability, high densification rate and enough promotion of sintering, by production of the path for electrical current flow, uniform deformation in the homogeneously distributed soft binder phase and enough diffusion between binder and mother elements, and (2) the excellent mechanical and oxidation properties by the microstructural control such as homogeneous structure and composition through compacts under microalloying condition.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 53(12), 928-937, 2006-12-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10018422093
  • 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
    8635705
  • 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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