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2008 Fiscal Year Final Research Report

Superconducting bulk magnet with higher trapped field over 7 Tesla magnetized by a newly pulsed-field magnetization

Research Project

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Project/Area Number 19560003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionIwate University

Principal Investigator

FUJISHIRO Hiroyuki  Iwate University, 工学部, 教授 (90199315)

Co-Investigator(Kenkyū-buntansha) NAITO Tomoyuki  岩手大学, 工学部, 助教 (40311683)
OKA Tetsuo  新潟大学, 工学部, 准教授 (40432091)
Co-Investigator(Renkei-kenkyūsha) NAITO Tomoyuki  岩手大学, 工学部, 助教 (40311683)
OKA Tetsuo  新潟大学, 工学部, 准教授 (40432091)
Project Period (FY) 2007 – 2008
Keywords超伝導応用 / パルス着磁技術 / 超伝導バルク / 結晶工学 / 熱物性 / 環境技術
Research Abstract

複数パルス磁場印加による超伝導バルクの捕捉磁場の向上を目的に、バルク直上の捕捉磁場分布の解析や強いピン止め力を有するバルクを用いた実験的検討を行った。新しいパルス着磁法(MMPSC)は、磁束の大きな粘性力により臨界電流密度Jc以上の磁場勾配を保持することが出来るため、最終的な捕捉磁場の向上が実現することが定性的に実証できた。今後更なる捕捉磁場向上を目指す基礎的な実験結果を得ることが出来た。

  • Research Products

    (17 results)

All 2009 2008 2007 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (7 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Pulsed Field Magnetization for GdBaCuO Bulk with Stronger Pinning Characteristics2009

    • Author(s)
      H. Fujishiro, T. Hiyama, T. Miura, T. Naito, S. Nariki, N. Sakai, I. Hirabayashi
    • Journal Title

      IEEE Trans. Appl. Supercond (掲載決定)

    • Peer Reviewed
  • [Journal Article] Enhancement of total trapped fluxes on f65 mm GdBaCuO bulk by multi-pulse techniques2009

    • Author(s)
      H. Fujishiro, K. Kakehata, T. Naito, Y. Yanagi, and Y. Itoh
    • Journal Title

      Physica C (掲載決定)

    • Peer Reviewed
  • [Journal Article] Trapped Field Enhancement of Five-aligned Superconduc- ting Bulk Magnetized by Pulse Field for Magnetic Separation2008

    • Author(s)
      T. Hiyama, H. Fujishiro, T. Tateiwa, T. Naito, H. Hayashi and K. Tone
    • Journal Title

      Physica C 468

      Pages: 1469-1472

    • Peer Reviewed
  • [Journal Article] Possible explanation for trapped field enhancement on REBaCuO bulk by modified multi-pulse technique with stepwise cooling (MMPSC)2008

    • Author(s)
      H. Fujishiro, T. Hiyama, T. Naito, T. Tateiwa and Y. Yanagi
    • Journal Title

      Materials Science and Engineering B 151

      Pages: 95-100

    • Peer Reviewed
  • [Journal Article] Trapped field and temperature rise in rectangular shaped HTSC bulk magnetized by pulse fields2007

    • Author(s)
      T. Tateiwa, Y. Sazuka, H. Fujishiro, H. Hayashi, T. Nagafuchi and T. Oka
    • Journal Title

      Physica C

      Pages: 463-465, 398-401

    • Peer Reviewed
  • [Journal Article] Importance of initial M-shaped trapped field profile using a two-step pulse field magnetization (MMPSC)method2007

    • Author(s)
      H. Fujishiro, T. Hiyama, T. Tateiwa, Y. Yanagi, and T. Oka
    • Journal Title

      Physica C

      Pages: 463-465, 394-397

    • Peer Reviewed
  • [Journal Article] Enhancement of Trapped Field and Total Trapped Flux on High Temperature Bulk Superconductor by a New Pulse-Field Magnetization Method2007

    • Author(s)
      H. Fujishiro, T. Tateiwa, and T. Hiyama
    • Journal Title

      Jpn. J. Appl. Phys 46

      Pages: 4108-4112

    • Peer Reviewed
  • [Journal Article] Trapped Field and Temperature Rise on f65 mm GdBaCuO Bulk by Pulse Field Magnetization2007

    • Author(s)
      H. Fujishiro, T. Tateiwa, K. Kakehata, T. Hiyama and T. Naito
    • Journal Title

      Supercond. Sci. Technol 20

      Pages: 1009-1014

    • Peer Reviewed
  • [Presentation] Enhancement of total trapped fluxes on f65 mm GdBaCuO bulk by multi-pulsetechniques2008

    • Author(s)
      H. Fujishiro
    • Organizer
      21st International Symposium on Super-conductivity (ISS2008)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2008-10-29
  • [Presentation] Pulsed Field Magnetization for GdBaCuO Bulk with Stronger Pinning Chara-cteristics2008

    • Author(s)
      H. Fujishiro
    • Organizer
      2008 Applied Superconductivity Conference
    • Place of Presentation
      Hyatt Regency Chicago, Illinois, Chicago, USA
    • Year and Date
      2008-08-20
  • [Presentation] 強いピン止め力を有する超伝導バルクへのパルス着磁2008

    • Author(s)
      藤代博之
    • Organizer
      2008年度春季低温工学・超電導学会
    • Place of Presentation
      明星大学・八王子
    • Year and Date
      2008-05-26
  • [Presentation] 強いピン止め力を有するバルクにおけるパルス着磁特性2008

    • Author(s)
      藤代博之
    • Organizer
      第55回応用物理学関係連合講演会、船橋
    • Place of Presentation
      日大理工学部
    • Year and Date
      2008-03-29
  • [Presentation] Trapped field characteristics on f65 mm GdBaCuO bulk by modified multi-pulse technique with stepwise cooling (MMPSC)2007

    • Author(s)
      H. Fujisiro
    • Organizer
      20^<th> International Symposium on Superconductivity (ISS2007)
    • Place of Presentation
      Tsukuba
    • Year and Date
      2007-11-07
  • [Presentation] Possible explanation for trapped field enhancement on REBaCuO bulk by modified multi-pulse technique with stepwise cooling (MMPSC)2007

    • Author(s)
      H. Fujishiro
    • Organizer
      6^<th> International Conference on Processing and Applications of Superconducting REBCO Large Grain Materials (PASREG)
    • Place of Presentation
      Cambridge大学, UK
    • Year and Date
      2007-09-15
  • [Presentation] φ65mm大型超伝導バルクのパルス着磁特性(2)---MMPSC法の効果---2007

    • Author(s)
      藤代博之
    • Organizer
      2007年度春季低温工学・超電導学会
    • Place of Presentation
      千葉大学
    • Year and Date
      2007-05-18
  • [Remarks]

    • URL

      http://ikebehp.mat.iwate-u.ac.jp/

  • [Patent(Industrial Property Rights)] 薄膜の製造方法及び半導体装置2007

    • Inventor(s)
      吉本則之、藤代博之、小川智
    • Industrial Property Rights Holder
      国立大学法人岩手大学
    • Industrial Property Number
      特許権, 特願2007-242624
    • Filing Date
      2007-09-19

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

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