Improvement of Magnetic Properties of Mechanically Ground Sm2Fe17Nx Powders by Vacuum Heat Treatment

DOI Web Site Web Site 参考文献18件
  • Ito Mikio
    Department of Materials Science and Engineering, Faculty of Engineering, Osaka University
  • Majima Kazuhiko
    Department of Materials Science and Engineering, Faculty of Engineering, Osaka University
  • Katsuyama Shigeru
    Department of Materials Science and Engineering, Faculty of Engineering, Osaka University
  • Nagai Hiroshi
    Department of Materials Science and Engineering, Faculty of Engineering, Osaka University

書誌事項

タイトル別名
  • Improvement of Magnetic Properties of Mechanically Ground Sm<SUB>2</SUB>Fe<SUB>17</SUB>N<I><SUB>x</SUB></I> Powders by Vacuum Heat Treatment
  • Improvement of Magnetic Properties of M

この論文をさがす

抄録

Sm2Fe17NX permanent magnetic powders have been prepared by mechanical grinding (MG) and subsequent heat treatments for crystallization and nitriding. Sm2.5Fe17 and Sm2.3Fe17 alloy powders have been used as a starting material. The oxygen content of the powders crystallized in vacuum is less than that of the powders crystallized in Ar atmosphere: it is less than 9000 ppm for Sm2.5Fe17 powders. Consequently, the precipitation of α-Fe, which deteriorates the rectangularity of their demagnetization curves, is suppressed.<BR>After MG for 72 ks and crystallization in vacuum the nitrided Sm2.3Fe17 powders close to stoichiometric Sm2Fe17, has no α-Fe precipitation. The saturation magnetization and remanence are larger than those of the nitrided Sm2.5Fe17 powders.

収録刊行物

参考文献 (18)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ