Special Stress-Magnetization Properties in Co-Based Amorphous Wire

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  • Fujii J.
    Dept. of Electrical and Electronics Engineering, Faculty of Engineering, Tottori University
  • Nagata T.
    Dept. of Electrical and Electronics Engineering, Faculty of Engineering, Tottori University
  • Konishi R.
    Dept. of Electrical and Electronics Engineering, Faculty of Engineering, Tottori University
  • Saito A.
    Faculty of Education, Tottori University
  • Nderu J. N.
    Kyushu Institute of Technology
  • Yamasaki J.
    Kyushu Institute of Technology

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Other Title
  • Co 基アモルファスワイヤの特異な応力磁化特性
  • Coキ アモルファス ワイヤ ノ トクイ ナ オウリョク ジカ トクセイ
  • Co基アモルファスワイヤの特異な応力磁化特性 (<特集>ソフト材料)

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Abstract

Changes in stress-magnetization properties due to annealing of Co-based amorphous wire were investigated. The magnetostriction constant of a Co-based amorphous wire [(Co0.94Fe0.06)72.5Si12.5B15] changed from negative to positive as a result of annealing at 260°C, which is below the Curie temperature. Peculiar stress-magnetization properties−a magnetization increase with low tensile stress and then a decrease with high tensile stress-appeared as a result of annealing at 220°C and 240°C. This phenomenon can be partly understood as a reflection of the combined influence of positive and negative magnetostriction constants.

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