メカニカルアロイング法により作製したMn-Al-C合金粉末の磁気特性 Magnetic Properties of Mn-Al-C Alloy Powders Prepared by Mechanical Alloying

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著者

    • 齋藤 哲治 SAITO Tetsuji
    • 千葉工業大学工学部機械サイエンス工学科 Department of Mechanical Science and Engineering, Chiba Institute of Technology

抄録

Mn, Al, and C powder mixtures were mechanically alloyed using a conventional ball mill and a high-energy ball mill in an argon atmosphere. Although the mechanically alloyed powders prepared by the conventional ball mill retained the original powders, the powders prepared by the high-energy ball mill did not retain the original powders and consisted of α-Mn solid solution. However, no intermetallic compounds such as the magnetic τ phase and high temperatures ε phase were formed during the mechanical alloying. The magnetic τ phase was obtained by subsequent annealing of the mechanical alloyed powders as was the case for the gas atomized powders. It was found that annealing of the powder mixture, without mechanical alloying, resulted in the formation of the small amount of the magnetic τ phase. However, the mechanical alloying significantly increased the amount of the magnetic τ phase in the annealed powders. This was due to the thorough mixing of Mn, Al, and C powders by the mechanical alloying. The magnetic properties of the annealed powders were deeply dependant on the annealing temperature. The optimally annealed mechanical alloyed powders showed a large saturation magnetization with a high coercivity comparable to those gas atomized counterparts.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 51(7), 548-553, 2004-07-15

    一般社団法人 粉体粉末冶金協会

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各種コード

  • NII論文ID(NAID)
    10013343829
  • 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
    7047330
  • 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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