460kJ/m^3磁石の開発 Developing of 460kJ/m^3 Nd-Fe-B Magnets

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The theoretical value of the maximum energy products of the Nd<SUB>2</SUB>Fe<SUB>14</SUB>B compound is calculated to be 512 kJ/m3. Day and day, every researcher investigates to achieve higher maximum energy products. In order to obtain realize this theme, not only improving on alignment of the 2-14-1 grains, but also increasing the coercive force is very important. So, we have been investigating on controlling the microstructure to be fine with an excellent alignment.<BR>As a result, we have succeeded in developing higher performance magnets having Br=1.533 T, HcJ=784kA/m, (BH)max=460kJ/m<SUP>3</SUP>. New techniques to achieve at this record are as follows; (1) Reduction of impurities such as oxygen, (2) Improvement of microstructure of the strip cast alloy, (3) Development of alignment method "Inclined magnetic pulsing".

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 51(9), 698-702, 2004-09-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10013560485
  • 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
    7110146
  • 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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