Nd-Fe-B系永久磁石合金の水素粉砕挙動 Behaviours of Hydrogen Decrepitation in R-Fe-B Type Permanent Magnet Alloy

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The powder metallurgical process has been used to produce Nd-Fe-B sintered permament magnet. Therefore, fine magnetic powders (3-4 μm) are required to be pulverized from Nd-Fe-B casting alloy. At present, a combination of hydrogen decrepitation(HD) and mechanical milling has been applied to make fine powders efficently. In our previous work, the fundamental hydrogen absorbing mechanism into Nd-Fe-B alloy was successfully studied by using P-C-Tequipment. In this paper, the influences of both the hydrogen absorbing conditions and the alloy conditions. Le. chemical composition, microstructure, and crystalline size, on the hydrogen decrepitation of Nd-Fe-B alloy were investigated in terms of H/M, and the basic mechanism of decrepitation processes related with the hydrogen absorbing conditions was revealed.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(1), 90-95, 1997-01-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013351
  • 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
    4118704
  • 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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