Sm-Co系焼結磁石の磁気特性に及ぼす残留炭素の影響 Influence of Residual Carbon on Magnetic Properties of Sintered Sm-Co Magnets

この論文にアクセスする

この論文をさがす

著者

抄録

The addition of organic binder in a small amount improves the compressibility and compactibility of Sm-Co magnet alloy powders. However, impurity carbon which comes from the binder is thought to lower magnetic properties of the sintered magnets. In this study, the relationships between the resid-ual carbon content and magnetic properties in SmCo<SUB>5</SUB> and Zr containing Sm<SUB>2</SUB> Co<SUB>17</SUB> magnets have been studied varying the amount of the binder. Effects of thermal debinding atmosphere on binder removal have been also investigated. When the green compacts were debound in vacuum atmosphere, the carbon content of the magnets increased with increase of the binder addition, which decreased coercivities of the magnets markedly. It was observed that carbon forms SmCoC<SUB>2</SUB> and ZrC carbides in SmCo<SUB>5</SUB> and Sm<SUB>2</SUB>Co<SUB>17</SUB> magnets respectively. Thermal debinding treatment in hydrogen atmosphere was found to be very effective for removing the binder and reducing the carbon content in the mag-nets. In the binder addition ranges of the present study, the magnets produced through use of this debinding treatment have exhibited nearly the same magnetic properties as those of the magnets made from the powders without the binder.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(1), 66-71, 1996-01-15 

    Japan Society of Powder and Powder Metallurgy

参考文献:  3件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002011091
  • 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
    3918036
  • 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 
ページトップへ