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2013 Fiscal Year Final Research Report

Isotropic thick film magnets prepared by using high purification and texture control

Research Project

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Project/Area Number 22360129
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionNagasaki University

Principal Investigator

NAKANO Masaki  長崎大学, 工学(系)研究科(研究院), 教授 (20274623)

Co-Investigator(Kenkyū-buntansha) FUKUNAGA Hirotoshi  長崎大学, 大学院・工学研究科, 教授 (10136533)
ITAKURA Masaru  九州大学, 総合理工学研究科, 准教授 (20203078)
Project Period (FY) 2010-04-01 – 2014-03-31
Keywords電気・電子材料 / 厚膜磁石 / ナノコンポジット磁石 / PLD / YAGレーザ / 保磁力 / 残留磁化 / 微細化
Research Abstract

In order to upgrade the torque of the small motor further, increase in the remenence value of the isotropic films is indispensable. In this study, therefore, we prepared nano-composite Nd-Fe-B/Alpha-Fe thick-films with dispersion structure by using a PLD (Pulsed Laser Deposition) method. In particular, we focused on the reduction in size and/or numbers of droplets by controlling the focus of laser beam. Resultantly, we succeeded in obtaining a Nd-Fe-B nano-composite thick film magnet with remanence, coercivity and (BH)max values of approximately 1.0 T, 400 kA/m and 100 kJ/m3, respectively.

  • Research Products

    (21 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (12 results) (of which Peer Reviewed: 11 results) Presentation (8 results) (of which Invited: 6 results) Remarks (1 results)

  • [Journal Article] Magnetic properties of pulsed laser deposition-fabricated isotropic Pr-Fe-B thick-films magnets for magnetic micro-machines2014

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

      J. Appl. Phys.

      Volume: vol.115 Pages: 17A741-1-3

    • Peer Reviewed
  • [Journal Article] Nano-composite thick-film magnets with Nd-Fe-B + α-Fe phases prepared under high laser energy density2014

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

      IEEE Trans. on Magn

      Volume: vol.50 Pages: 2101404-1-4

    • Peer Reviewed
  • [Journal Article] Nd-Fe-B 系厚膜磁石の作製と磁気特性2012

    • Author(s)
      中野正基, 柳井武志, 山下文敏, 福永博俊
    • Journal Title

      日本金属学会誌

      Volume: 第76巻第1号 Pages: 59-64

  • [Journal Article] Enhancement in coercivity of Pulsed Laser Deposition-fabricated Fe-Pt thick film magnets by reducing droplets2012

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

      J. App. Phys.

      Volume: vol.111, No.7 Pages: 07A737-1-3

    • Peer Reviewed
  • [Journal Article] PLD法を用いたマイクロロータ用等方性Nd-Fe-B系厚膜磁石の作製2012

    • Author(s)
      中野正基, 板倉賢, 柳井武志, 山下文敏, 福永博俊
    • Journal Title

      電気学会論文誌A

      Volume: vol.132, No.10 Pages: 844-848

    • Peer Reviewed
  • [Journal Article] Multi-polarly micro rotor prepared from isotropic nanocrystalline films with self-bonding layer2011

    • Author(s)
      F. Yamashita, N. Menjo, S. Nishimura, O. Kobayashi, M. Itoh, K. Terada, M. Nakano, H. Fukunaga, and K. Ishiyama
    • Journal Title

      Journal of Physics

      Volume: vol.266 Pages: 012051-1-4

    • Peer Reviewed
  • [Journal Article] Magnetic properties of pulsed laser deposition-fabricated isotropic Fe-Pt film magnets2011

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

      J. Appl. Phys.

      Volume: vol.109 Pages: 07A723-1-4

    • Peer Reviewed
  • [Journal Article] Nd-Fe-B thick film magnets with Nb additive prepared by vacuum arc deposition method2011

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

      J. Appl. Phys.

      Volume: vol.109 Pages: 07A755 -1-3

    • Peer Reviewed
  • [Journal Article] Magnetic properties of Nd-Fe-B thick film magnets prepared by using arc deposition2010

    • Author(s)
      M. Nakano, M. Sahara, K. Yamawaki, T. Yanai, H. Fukunaga
    • Journal Title

      J. Appl. Phys.

      Volume: vol.107 Pages: 09A744-1-2

    • Peer Reviewed
  • [Journal Article] Investigation on Magnetic Torque of Multi-Polarly Micro Rotor Using Shape-Magnetic-Anisotropy2010

    • Author(s)
      F. Yamashita, S. Nishimura, N. Menjo, O. Kobayashi, M. Nakano, H. Fukunaga, and K. Ishiyama
    • Journal Title

      IEEE Trans.Magn.

      Volume: 46 Pages: 2012-2014

    • Peer Reviewed
  • [Journal Article] Anisotropic Nd-Fe-B thick film magnets prepared on various substrates2010

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

      J. Phys. Conf. Series

      Volume: vol. 200 Pages: 082021-1-4

    • Peer Reviewed
  • [Journal Article] Composite Bonded Magnets with Self-Recoverability for Miniaturized Anisotropic Magnet Rotor2010

    • Author(s)
      F. Yamashita, O.Yamada, S. Ohya, O. Kobayashi, M. Nakano, H. Fukunaga
    • Journal Title

      IEEE Trans. Magn.

      Volume: vol. 46 Pages: 1978-1981

    • Peer Reviewed
  • [Presentation] Magnetic properties of PLD-fabricated isotropic Pr-Fe-B thick-films magnets for magnetic micro-machines2013

    • Author(s)
      M. Nakano, S. Oshima, T. Yanai and H. Fukunaga
    • Organizer
      The 58th Annual Conference on Magnetism and Magnetic Materials
    • Place of Presentation
      Denver(USA)
    • Year and Date
      2013-11-07
    • Invited
  • [Presentation] Thick-film Magnets for MEMS Applications2013

    • Author(s)
      M. Nakano, T. Yanai, H. Fukunaga
    • Organizer
      The 8th Pacific RIM Int. Congress on Advanced Mater. Processing
    • Place of Presentation
      Waikoloa(USA)
    • Year and Date
      2013-08-05
    • Invited
  • [Presentation] Nano-composite Thick-film Magnets with Nd-Fe-B + α-Fe Phases Prepared under High Laser Energy Density2013

    • Author(s)
      M. Nakano, K.Motomura, T.Yanai, and H. ukunaga
    • Organizer
      ISAMMA 2013(The 3rd International Symposium on Advanced Magnetic Materials and Applications)
    • Place of Presentation
      台中(台湾)
    • Year and Date
      2013-07-24
    • Invited
  • [Presentation] Nd-Fe-B Thick Film Magnets Applied for Magnetic Micro-machines2013

    • Author(s)
      M. Nakano, T. Yanai, H. Fukunaga
    • Organizer
      Collaborative Conf. on Mater. Res.
    • Place of Presentation
      済州(韓国)
    • Year and Date
      2013-06-07
    • Invited
  • [Presentation]2012

    • Author(s)
      M. Nakano, T. Yanai, F. Yamashita, H. Fukunaga
    • Organizer
      2012 EMN (Energy Material Nanotechnology) Fall Meeting
    • Place of Presentation
      ラスベガス(米国)
    • Year and Date
      2012-11-29
    • Invited
  • [Presentation] PLD-fabricated Nd-Fe-B Thick Film Magnets Applied for MEMS2012

    • Author(s)
      M. Nakano, T. Yanai, F. Yamashita, H. Fukunaga
    • Organizer
      ICSM (International Conference on Superconductivity and Magnetism)
    • Place of Presentation
      イスタンブール(トルコ)
    • Year and Date
      2012-05-03
    • Invited
  • [Presentation] Nd-Fe-B Thick Film Magnets Prepared by Vacuum Arc Deposition2011

    • Author(s)
      M. Nakano, M. Sahara, T. Yanai, H. Fukunaga
    • Organizer
      MISM2011(Moscow International Symposium on Magnetism)
    • Place of Presentation
      Moscow(Russia)
    • Year and Date
      2011-08-24
  • [Presentation] Rare-earth thick film magnets for magnetic micro-machines2011

    • Author(s)
      M. Nakano, T. Yanai, H. Fukunaga
    • Organizer
      REMAT2011 (2nd International Conference on RARE EARTH MATERIALS)
    • Place of Presentation
      Wroclaw(Poland)
    • Year and Date
      2011-06-14
  • [Remarks]

    • URL

      http://www.eee.nagasaki-.ac.jp/~magnet/paper.Html

URL: 

Published: 2015-06-25  

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