NiおよびZrの微量添加によるMo粉の活性化焼結 Enhanced Sintering of Mo Powder Through the Additions of a Slight Amount of Ni and Zr

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Enhanced sintering of molybdenum (Mo) powder through the addition of Ni and Zr was investigated. In order to obtain an uniform and fine dispertion of the additives on the surface of Mo particles, Ni and Zr were added using the nitrate solusions. The results obtained were as follows.<BR>(1) The densification of Mo powder during sintering was markedly enhanced through the additions of Zr in conjunction with Ni, whereas through the additions of Zr alone no such enhancement occured.<BR>(2) The sinterability of Mo powder increased with the increase of Ni.<BR>(3) The additives composed of Ni and Zr in a mass ratio of about 4 to 1 indicated the most enhancing effect on sintering of Mo powder. For instance, Mo powder contained 0.8mass%Ni and 0.2mass%Zr was densified to near the theoretical density by sintering at 1573K for 24ks.<BR>(4) In addition to sintering enhancement, Zr was very effective on the grain refinement of sintered Mo compacts.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 46(1), 22-27, 1999-01-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002053578
  • 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
    4639530
  • 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  NDL  J-STAGE 
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