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Creation of Highly Functional Exchange-Spring RE-TM Films by Panoscopic Assembling

Research Project

Project/Area Number 20900134
Allocation TypeSingle-year Grants
Research InstitutionNagasaki University

Principal Investigator

FUKUNAGA Hirotoshi  長崎大学, 工学部電気電子工学科, 教授 (10136533)

Co-Investigator(Kenkyū-buntansha) NAKANO Masaki  長崎大学, 工学部電気電子工学科, 准教授 (20274623)
YANAI Takeshi  長崎大学, 工学部電気電子工学科, 助教 (30404239)
Project Period (FY) 2008
Project Status Completed (Fiscal Year 2008)
Keywords磁性材料 / パノスコピック / 電子・電気材料 / 複合材料 / PLD
Outline of Final Research Achievements

高出力パルスレーザを用いるPLD法により, 数十ナノメートル程度のNd-Fe-B/α-Fe層を交互に1000層程度積層し, 超多周期積層型交換スプリング厚膜磁石を作製することに成功した。作製した膜は等方性の磁気特性を示し, その最大エネルギー積は90kJ/㎥となった。さらに, 補助レーザで基板―ターゲット間を飛行するドロップレットを再アブレーションし, 厚膜磁石の表面平滑性改善する技術を新たに開発した。今後, 補助レーザを有するPLD装置での膜組成制御技術を開発する必要がある。
また, 数十μm/hの高速製膜条件下において, 基板加熱法により異方性厚膜磁石を作製し, 新たに開発した遮断成膜法とGaの添加を組み合わせることにより, 残留磁化0.95 T, 保磁力876kA/m, (BH)_<max>146 kJ/㎥の厚膜磁石の高速成膜を実現した。

Report

(2 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (9 results)

All 2009 2008 Other

All Journal Article (7 results) (of which Peer Reviewed: 5 results) Presentation (1 results) Remarks (1 results)

  • [Journal Article] PLD-fabricated anisotropic Nd-Fe-B thick films with Ga additive2009

    • Author(s)
      M. Nakano, S. Tsutsumi, T. Yanai, H. Fukunaga and F. Yamashita
    • Journal Title

      J. Appl. Phys Vol.105, No.7

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Change in the direction of anisotropy in PLD-fabricated Sm-Co thick filmmagnets2009

    • Author(s)
      K. Yamaguchi, T. Yanai, M. Nakano, H. Fukunaga and F. Yamashita
    • Journal Title

      J. Appl. Phys Vol.105, No.7

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 高保磁力厚膜磁石の開発とその応用2008

    • Author(s)
      中野正基, 柳井武志, 福永博俊, 加藤宏朗, 小山佳一
    • Journal Title

      東北大学金属材料研究所強磁場超伝導材料研究センター平成19年度年次報告

      Pages: 111-112

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Properties of Multi-Layered Nanocomposite Film-Magnets2008

    • Author(s)
      H. Fukunaga, H. Nakayama, M. Nakano, and T. Yanai
    • Journal Title

      Proceedings of the 10th Joint Symposium of Nagasaki University and Cheju NationalUniversity on Science and Technology

      Pages: 11-14

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of ring-shaped rare earth bonded magnets with continuously controlled anisotropy directions2008

    • Author(s)
      F. Yamashita, Y. Okada, K. Kawamura, H. Murakami, M. Ogushi, M. Nakano, and H. Fukunaga
    • Journal Title

      Proceedings 20^<th> Workshop on Rare Earth Permanent Magnets and Applications, Creta Greece

      Pages: 91-94

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Improvement in magnetic properties of anisotropic Nd-Fe-B film magnets2008

    • Author(s)
      M. Nakano, S. Tsutsumi, H. Takeda, T. Yanai, H. Fuknaga, F. Yamashita
    • Journal Title

      Proceedings 20th Workshop on Rare Earth Permanent Magnets and Applications, Creta Greece

      Pages: 231-232

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Improvement in magnetic properties of PLD-made Nd-Fe-B thick film magnets2008

    • Author(s)
      M. Nakano, H. Takeda, F. Yamashita, T. Yanai, and H. Fukunaga
    • Journal Title

      IEEE Trans. Magn Vol.44, No.11

      Pages: 4199-4201

    • NAID

      120006984190

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Improvement in Morphology and Magnetic Properties of Thick Nanocomposite Film-Magnets with Multi-Layered Structure2008

    • Author(s)
      H. Fukunaga, et.al.
    • Organizer
      IEEE International Magnetics Conference 2008
    • Place of Presentation
      Madrid (Spain)
    • Year and Date
      2008-05-07
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.eee.nagasaki-u.ac.jp/~magnet/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2010-06-11   Modified: 2016-11-18  

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