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2015 Fiscal Year Annual Research Report

高磁場応用に向けた鉄系超伝導材料の開発

Research Project

Project/Area Number 15H05519
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

山本 明保  東京農工大学, 工学(系)研究科(研究院), 准教授 (20581995)

Project Period (FY) 2015-04-01 – 2018-03-31
Keywords超伝導 / 鉄系高温超伝導 / 磁石
Outline of Annual Research Achievements

新世代の高磁場応用材料候補として鉄系高温超伝導体に着目し、バルク超伝導磁石の作製方法の確立と、磁力基礎特性の評価を目的として研究を行った。
平成27年度には、組織的均一性に優れた鉄系高温超伝導多結晶バルク体の作製を目指すとともに、着磁法、及び捕捉磁場の測定法を確立するための予察的な検討を行った。以下に得られた成果を箇条書きに記す。
1.等方高圧熱処理法により試作した、直径10mm、高さ20mmのサイズの円盤状鉄系高温超伝導バルク体に対して、冷凍機冷却下における静磁場下着磁を行い、1テスラを上回る磁場捕捉に成功した。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

バルク体の試作、及び磁化に成功するなど、交付申請書に記載した以上の研究成果が得られたため。

Strategy for Future Research Activity

H27年度には当初の計画以上の研究の進展が得られた。H28年度以降も引き続き、共同研究機関との緊密な連携の下に、交付申請書の研究計画に沿って研究を進める予定である。

  • Research Products

    (17 results)

All 2016 2015 Other

All Int'l Joint Research (6 results) Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 5 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 5 results,  Invited: 5 results) Remarks (1 results)

  • [Int'l Joint Research] 国立強磁場研究所(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      国立強磁場研究所
  • [Int'l Joint Research] ケンブリッジ大学/ブルーネル大学(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      ケンブリッジ大学/ブルーネル大学
  • [Int'l Joint Research] リエージュ大学(ベルギー)

    • Country Name
      BELGIUM
    • Counterpart Institution
      リエージュ大学
  • [Int'l Joint Research] ウィーン工科大学(オーストリア)

    • Country Name
      AUSTRIA
    • Counterpart Institution
      ウィーン工科大学
  • [Int'l Joint Research] ポーランド科学アカデミー(ポーランド)

    • Country Name
      POLAND
    • Counterpart Institution
      ポーランド科学アカデミー
  • [Int'l Joint Research]

    • # of Other Countries
      2
  • [Journal Article] A defect detection method for MgB2 superconducting and iron-based Ba(Fe,Co)2As2 wires2016

    • Author(s)
      D. J. Gajda, A. J. Morawski, A. J. Zaleski, A. Yamamoto, and T. Cetner
    • Journal Title

      Applied Physics Letters

      Volume: 108 Pages: 152601

    • DOI

      10.1063/1.4947056

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Small grains: A key to high-field applications of granular Ba-122 superconductors?2016

    • Author(s)
      J. Hecher, T. Baumgartner, J. D. Weiss, C. Tarantini, A. Yamamoto, J. Jiang, E. E. Hellstrom, D. C. Larbalestier, and M. Eisterer
    • Journal Title

      Superconductor Science & Technology

      Volume: 29 Pages: 025004 1-10

    • DOI

      10.1088/0953-2048/29/2/025004

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A trapped magnetic field of 3 T in homogeneous, bulk MgB2 superconductors fabricated by a modified precursor infiltration and growth process2016

    • Author(s)
      A. G. Bhagurkar, A. Yamamoto, L. Anguilano, A. Dennis, N. Hari Babu, and D. A. Cardwell
    • Journal Title

      Superconductor Science & Technology

      Volume: 29 Pages: 035008

    • DOI

      10.1088/0953-2048/29/3/035008

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Demonstration of an iron-pnictide bulk superconducting magnet capable of trapping over 1 T2015

    • Author(s)
      J. D. Weiss, A. Yamamoto, A. A. Polyanskii, R. B. Richardson, D. C. Larbalestier, and E. E. Hellstrom
    • Journal Title

      Superconductor Science & Technology

      Volume: 28 Pages: 112001 1-6

    • DOI

      10.1088/0953-2048/28/11/112001

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Enhanced trapped field in MgB2 bulk magnets by tuning grain boundary pinning through milling2015

    • Author(s)
      S. Sugino, A. Yamamoto, J. Shimoyama, and K. Kishio
    • Journal Title

      Superconductor Science & Technology

      Volume: 28 Pages: 055016 1-7

    • DOI

      10.1088/0953-2048/28/5/055016

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Modeling intergranular current transport in Fe-based superconductors2015

    • Author(s)
      A. Yamamoto, M. Eisterer
    • Organizer
      14th International Union of Materials Research Societies - International Conference on Advanced Materials
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2015-10-27
    • Int'l Joint Research / Invited
  • [Presentation] Enhanced trapped field in MgB2 bulk magnets by tuning grain boundary pinning2015

    • Author(s)
      A. Yamamoto, S. Sugino, K. Kishio, A. Ishihara, T. Akasaka, M. Tomita
    • Organizer
      12th European Conference on Applied Superconductivity
    • Place of Presentation
      Lyon, France
    • Year and Date
      2015-09-07
    • Int'l Joint Research / Invited
  • [Presentation] Enhanced trapped field in MgB2 bulk magnets by tuning grain boundary pinning2015

    • Author(s)
      A. Yamamoto
    • Organizer
      The 9th International Workshop on Processing and Applications of Superconducting (RE)BCO Large Grain Materials
    • Place of Presentation
      Liege, Belgium
    • Year and Date
      2015-09-03
    • Int'l Joint Research / Invited
  • [Presentation] How can we control formation of GBs towards well connected, high field MgB2?2015

    • Author(s)
      A. Yamamoto
    • Organizer
      The International Committee for Future Accelerators Mini-workshop on High Field Magnets for Super pp Colliders
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2015-06-16
    • Int'l Joint Research / Invited
  • [Presentation] Development of MgB2 Superconducting Bulk Permanent Magnet2015

    • Author(s)
      A. Yamamoto, S. Sugino, K. Kishio, A. Ishihara, T. Akasaka, M. Tomita
    • Organizer
      2015 MRS Spring Meeting & Exhibit
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2015-04-07
    • Int'l Joint Research / Invited
  • [Remarks] テニュアトラック教員の紹介|テニュアトラック事業 国立大学法人東京農工大学

    • URL

      http://www.tenure-track-tuat.org/scholar/technology/post_50.html

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Published: 2017-01-06   Modified: 2022-08-29  

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