Bulk Glassy Fe78-xCoxGa2P12C4B4 Alloys with High Saturation Magnetization and Good Soft Magnetic Properties

• Shen Baolong

  Institute for Materials Research, Tohoku University

• Kimura Hisamichi

  Institute for Materials Research, Tohoku University

• Inoue Akihisa

  Institute for Materials Research, Tohoku University

• Mizushima Takao

  Magnetic Application Department, Alps Electric Co. Ltd.

書誌事項

タイトル別名

• Bulk Glassy Fe<SUB>78-x</SUB>Co<SUB>x</SUB>Ga<SUB>2</SUB>P<SUB>12</SUB>C<SUB>4</SUB>B<SUB>4</SUB> Alloys with High Saturation Magnetization and Good Soft Magnetic Properties

抄録

The effect of Co on the magnetic properties and glass-forming ability for the Fe_78−xCo_xGa₂P₁₂C₄B₄ glassy alloys was investigated. The addition of 4 to 8 at%Co was found to be effective for the extension of the supercooled liquid region (ΔT_x) defined by the difference between the glass transition temperature (T_g) and crystallization temperature (T_x). The ΔT_x value is 26 K for the Fe₇₈Ga₂P₁₂C₄B₄ alloy and increases to 37 K for the 4 at%Co alloy. Besides, the addition of a small amount of Co was also found to be effective for increasing the saturation magnetization (I_s) and decreasing the coercive force (H_c). These glassy ribbon alloys exhibit good soft magnetic properties of 1.36 to 1.43 T for saturation magnetization and 1.5 to 1.8 A/m for coercive force. The largest saturation magnetization (I_s) is 1.43 T for Fe₇₄Co₄Ga₂P₁₂C₄B₄ alloy. Based on its large ΔT_x, we tried to prepare bulk glassy Fe₇₄Co₄Ga₂P₁₂C₄B₄ rods in a cylindrical form with different diameters. The glassy single phase was obtained in the diameter of 0.5 and 1.0 mm. These bulk glassy alloys also exhibit high saturation magnetization of about 1.42 T.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 42 (6), 1052-1055, 2001

  公益社団法人 日本金属学会

キーワード

• bulk glassy alloy
• high glass-forming ability
• high saturation magnetization
• soft magnetization properties
• large supercooled liquid region
• iron-cobalt base system

詳細情報

• CRID: 1390282679225065472
• NII論文ID: 130004451527
• NII論文ID: 10006549922
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.42.1052
• COI: 1:CAS:528:DC%2BD3MXlvVGmsrw%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 5824127
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5824127
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/42/6/42_6_1052/_pdf
• 本文言語コード: en
• データソース種別:
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