Magnetic Properties and Structures of Rapidly Quenched Sm-Co-Fe-Cu-Zr Allay Ribbons

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  • Fukui Yasuji
    Graduate Student, Nagoya University
  • Nishio Takayuki
    Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University
  • Iwama Yoshiro
    Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University

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  • Sm-Co-Fe-Cu-Zr系合金急冷薄帯の磁気特性と構造
  • Sm Co Fe Cu Zrケイ ゴウキン キュウレイ ハクタイ ノ ジキ ト

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Description

Ribbons with a composition of Sm(Co,Fe,Cu,Zr)7.4 have been prepared by the melt-spinning technique, to examine their magnetic properties and structures. In the as-prepared state, the ribbon specimens are composed of a single phase with a very low coercivity. With appropriate heat treatments, however, the specimen is transformed into a two-phase structure in which a celullar structure of 2-17 phase is divided by boundaries of 1-5 phase. As a result, the maximum value, 460 kA/m, may be achieved. These results obtained for the melt-spun ribbons are very similar to those for the sintered magnet alloy of the same composition.

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