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Fabrication of superconducting nanocrystal alloy using metallic glass precursor

Research Project

Project/Area Number 24510155
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nanomaterials/Nanobioscience
Research InstitutionUniversity of Hyogo

Principal Investigator

OKAI Daisuke  兵庫県立大学, 工学(系)研究科(研究院), 助教 (60336831)

Co-Investigator(Kenkyū-buntansha) MOTOYAMA Gaku  島根大学, 理工学研究科, 准教授 (20360050)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywordsナノ結晶合金 / 超電導合金 / アモルファス合金 / 金属ガラス / ナノ結晶 / 超電導体
Outline of Final Research Achievements

Fabrication of (Zr,Ti)-Nb based nanocrystal alloys were performed. The (Zr,Ti)-Nb based nanocrystal alloys were fabricated by annealing of (Zr,Ti)-Nb based precursors, which were prepared using rapid quench technique. For preparing of the precursor, the Zr-Nb-Al-Co and Zr-Nb-Al-Co-Ti superconducting precursors with nanoparticles dispersed in amorphous matrix were obtained. The Zr-Nb-Al-Co-Ti nanocrystalline alloys with full nanocrystal structure were fabricated by annealing of the precursor. The Zr55Nb15Al15Co9Ti6 nanocrystal alloys exhibited superconductivity blow approximately 5K. The Tc of Zr55Nb20Al15Co10 superconducting nanocrystal alloy was approximately 8K.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (6 results)

All 2015 2014 2013 2012

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Amorphousization and superconducting property for Zr-Nb based alloy2014

    • Author(s)
      D. Okai, K. Mori, G. Motoyama, H. Kimura and H. Kato
    • Journal Title

      Materials Science Form

      Volume: 783-786 Pages: 2503-2508

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Superconducting property of Zr-Cu-Al-Ni-Nb alloys2012

    • Author(s)
      D. Okai, G. Motoyama, H. Kimura and A. Inoue
    • Journal Title

      Physics Procedia

      Volume: 27 Pages: 56-59

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 液体急冷法で作製したZr55Nb15Al15Co9Ti6合金のナノ結晶化と超電導特性2015

    • Author(s)
      岡井大祐,本山岳,山口明
    • Organizer
      第156回日本金属学会春期大会
    • Place of Presentation
      東京大学、東京都目黒区
    • Year and Date
      2015-03-18 – 2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Fabrication of superconducting Zr-Nb-Al-Co alloy by melt-spinning method2014

    • Author(s)
      D.Okai, K. Mori, G. Motoyama and A. Yamaguchi
    • Organizer
      Materials Science and Engineering Congress 2014 (MSE 2014)
    • Place of Presentation
      Darmstadt, Germany
    • Year and Date
      2014-09-23 – 2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Zr55Nb20Al15Co10合金の微細組織化と超電導特性2014

    • Author(s)
      岡井大祐,森健太郎,本山 岳,山口明,加藤秀美
    • Organizer
      日本金属学会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Amorphousization and superconducting property for Zr-Nb based alloy2013

    • Author(s)
      D. Okai, K. Mori, G. Motoyama, H. Kimura and H. Kato
    • Organizer
      8th International conference on processing & manufacturing of advanced materials (Thermec' 2013)
    • Place of Presentation
      Rio Hotel, Las Vegas, USA
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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