ストロンチウムフェライト粒子の湿式磁場成形時の配向性 Crystal Orientation Degree of Strontium Ferrite Particles in Magnetic Field at Wet-Pressing Stage

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Orientation degree of strontium ferrite particles in a magnetic field at water-based wet-pressing stage was investigated from the viewpoint of calcining temperature and dispersant addition. In the case of no dispersant addition, the orientation degree was low especially at low calcining temperature (1150°C and 1200°C), at which the particle size was under micron. Increasing the calcining temperature, the orientation degree noticeably increased. On the other hand, we found that the orientation of the submicron sized particles was much improved by addition of calcium gluconate as a dispersant and then the orientation degree was almost independent of calcining temperature. It was predicted that calcium gluconate effectively deagglomerated submicron sized particles of strontium ferrite. Therefore addition of calcium gluconate enabled to produce high-performance ferrite magnets with both high coercivity and high remanence.

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), 77-82, 1999-01-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002053660
  • 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
    4639989
  • 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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