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ULTRATHIN VERY LOW LOSS Co-BASED AMORPHOUS RIBBONS AND DEVELOPMENT OF MICRO MAGNETIC DEVICES.

Research Project

Project/Area Number 04555072
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 電子材料工学
Research InstitutionKUMAMOTO INSTITUTE OF TECHNOLOGY (1993)
Miyagi National College of Technology (1992)

Principal Investigator

YAGI Masaaki  Kumamoto Institute of Technology, Applied Electronics Laboratory for Energy.Prof., 工学部, 教授 (80005371)

Co-Investigator(Kenkyū-buntansha) SAWA Takao  Toshiba Co.Ltd., New Materials Engig.Laboratory., 新素材応用研究所, 主査
SASADA Ichiro  Kyusyu Univ.Dept.of Engig., Associate Prof., 工学部, 助教授 (20117120)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥4,700,000 (Direct Cost: ¥4,700,000)
KeywordsCo-based amorphous alloys / Ultrathin ribbons / Very low core loss / High initial permeability / Micro magnetic devices / 極薄アモルファス薄帯 / 電子機器電源用高周波磁心 / 超低磁心損失 / 高透磁率
Research Abstract

Ultrathin very low loss Co-based amorphous ribbons were fabricated in vacuum and high-frequency micro power magnetic-devices were studied to make by these ribbons.
The samples used were zero magetostrictive ((Fe-Co)Cr_y)_x(Si-B)_<100-x'>(x=75-81), (y=0.05-0.06) amorphous alloys with a thickness of 5-6mum. The results obtained were as follows.
Extremely low core loss beyond 100 kHz was attained for the samples with a transverse field annealing. In the case of 6.0 mum thick ((Fe-Co)Cr_<0.06>)_<79>(Si-B)_<21> ribbon cores, the loss at 1 MHz for maximum flux density B_m=0.1T was 700 (mW/cc). This value was about 1/4 of that of Mn-Zn high-frequency ferrites or 5 mum Supermalloy tape wound cores.
Furthermore, marked improvements of frequency dependence of initial permeability were also obtained for ((Fe-Co)Cr_y)_x(Si-B)_<100-x'>(x=76-81) ribbons with transverse field annealing.
Now, some planer micro transformers or inducters are being produced by these ultrathin amorphous ribbons.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] 八木,沢,山崎: "高周波用Co基アモルファス超薄帯磁心の磁気特性" 電気学会論文誌A. Vol.112. 545-552 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 八木: "極薄Co基アモルファス薄帯とその高周波磁気特性" 日本金属学会報. 31. 991-998 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 沢、中川、八木、井上: "Co基アモルファス極薄薄帯磁心とその応用" 東芝レビュー. 47. 895-898 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 八木、沢: "超低損失アモルファス磁性薄帯の開発と応用" 日本学術振興会・アモルファス材料第147委員会第37回研究会資料. 13-18 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 八木: "極薄Co基アモルファス薄帯の高周波磁気特性とその応用" 電気学会マイクロ磁気デバイス調査専門委員会資料. MD-14-8. 13 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Edited by Y.Sakurai,Y.Hamakawa,T.Masumoto,K.Shirae and K.Suzuki: "CURRENT TOPICS IN AMORPHOUS MATERIALS:PHYSICS & TECHNOLOGY(分担;Amorphous Ribbons,pp.201-205)" NORTH-HOLLAND, 432 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yagi, T.Sawa and J.Yamasaki: "Magnetic Properties of Ultrathin Co-Based Amorphous Ribbon Cores." Trans.IEE of Japan. Vol.112. 545-552 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yagi: "Ultrathin Co-Based Amorphous Alloy Ribbons." BULLETIN OF JAPAN INSTITUTE OF METALS.Vol.31. 991-998 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Sawa, K.Nakagawa, N.Yagi and T.Inoue: "Ultrathin Co-Based Amorphous Alloy Cores and Their Applications" TOSHIBA REVIEW. Vol.47. 895-898 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Edited by Y.Sakurai et al.: CURRENT TOPICS IN AMORPHOUS METALS, PHYSICS & TECHNOLOGY. NORTH-HOLLAND (Amorphous Ribbons), 201-205 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 八木,沢,山崎: "高周波用Co基アモルファス超薄帯磁心の磁気特性" 電気学会論文誌A. Vol.112. 545-552 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 八木: "極薄Co基アモルファス薄帯とその高周波磁気特性" 日本金属学会報. 31. 991-998 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 沢、中川、八木、井上: "Co基アモルファス極薄薄帯磁心とその応用" 東芝レビュー. 47. 895-898 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 八木、沢: "超低損失アモルファス磁性薄帯の開発と応用" 日本学術振興会・アモルファス材料第147委員会第37回研究会資料. 13-18 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 八木: "極薄Co基アモルファス薄帯の高周波磁気特性とその応用" 電気学会マイクロ磁気デバイス調査専門委員会資料. MD-14-8. 13 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Edited by Y.sakurai et al.: "CURRENT TOPICS IN AMORPHOUS MATERIALS:PHYSICS & TECHNOLOGY(分担;Amorphous Ribbons;pp.201-205)" NORTH-HOLLAND, 432 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 八木、沢、山崎: "高周波用Co基アモルファス超薄帯磁心の磁気特性" 電気学会論文誌A. 112-A. 545-552 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 八木: "開発進むマイクロ磁気デバイス、Co基アモルファス薄帯およびアモルファスワイヤ磁性材料" 日本応用磁気学会研究会資料. 第76回. 17-20 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 八木、沢: "超低損失アモルファス磁性薄帯の開発と応用" 日本学術振興会アモルファス材料147委員会第37回研究会. 13-18 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 八木: "極薄アモルファス薄帯とその高周波特性" 日本金属学会会報. 31巻11号. 991-998 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 沢、中川、八木、井上: "Co基アモルファス極薄薄帯磁心とその応用" 東芝レビュー. Vol.47. 895-898 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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