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Improvement for magnesium diboride tapes via ex-situ PIT process

Research Project

Project/Area Number 18760498
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Physical properties of metals
Research InstitutionNational Institute for Materials Science

Principal Investigator

NAKANE Takayuki  National Institute for Materials Science, 超伝導材料センター, 主任研究員 (40354302)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,750,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords超伝導材料・素子 / 化学工学
Research Abstract

熱処理を必要としない手法(Ex-situ法)で作製するMgB2超伝導線材の研究を行い、この線材の高性能化には、研究当初に重要視されていた結晶性の低いMgB2粉体ではなく、粒内の臨界電流密度が高く表面?化が少ない粉体を原料に用いることが重要であることを明らかにした。また、MgB2粉体の作製手法を化学的に行う新規技術を開発し、通常600度以上で作製するMgB2粉体を200度未満の低温で調整することに成功した。この技術は、原理的にナノ微粒子化や大量合成が可能な上に、入手困難なボロン粉末を必要としない等の利点もある。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (21 results)

All 2009 2008 2007 Other

All Journal Article (6 results) (of which Peer Reviewed: 5 results) Presentation (15 results)

  • [Journal Article] Evaluation of the effect of area factors on the grain connectivity of ex-situ MgB2 cores2009

    • Author(s)
      T. Nakane and H. Kumakura
    • Journal Title

      IEEE Trans. Appl. Supercond (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Preparation of MgB2 powder for ex-situ tape with high Jc-B performance2008

    • Author(s)
      T. Nakane and H. Kumakura
    • Journal Title

      Journal of Materials Research 23

      Pages: 486-493

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Pressurizing effect for the precursor mixtures of starting MgB2 powder on the Jc-B performance of product ex-situ tape2008

    • Author(s)
      T. Nakane, K. Takahashi, T. Kuroda and H. Kumakura
    • Journal Title

      Physica C 468

      Pages: 1805-1808

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of MgB_2 powder for ex-situ tape with high Jc-B performance2008

    • Author(s)
      T. Nakane and H. Kumakura
    • Journal Title

      Journal of Materials Research 23

      Pages: 486-493

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pressurizing effect for the precursor mixtures of starting MgB_2 powder on the Jc-B performance of product ex-situ tape2008

    • Author(s)
      T. Nakane, K. Takahashi, T. Kuroda and H. Kumakura
    • Journal Title

      Physica C (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of the effect of area factors on the grain connectivity of ex-situ MgB2 cores

    • Author(s)
      T. Nakane and H. Kumakura
    • Journal Title

      IEEE Trans. Appl. Supercond. (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Fabrication and Evaluation of MgB2 Tapes via Ex-Situ PIT Technique2008

    • Author(s)
      T. Nakane, A. Asthana, K. Hashi, M. Murakami, K. Takahashi, H. Abe, T. Shimizu, H. Kitaguchi and H. Kumakura
    • Organizer
      The IUMRS-international Conference in Asia 2008
    • Place of Presentation
      名古屋
    • Year and Date
      2008-12-10
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 11B NMR study for the evaluation of residual boron in MgB2 tape2008

    • Author(s)
      T. Nakane, K. Hashi, M. Murakami, H. Abe, T. Shimizu and H. Kumakura
    • Organizer
      21th International Symposium on Superconductivity
    • Place of Presentation
      つくば
    • Year and Date
      2008-10-28
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Fabrication and the evaluation of ex-situ MgB2 tapes with different grain connectivity2008

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      2008 Applied Superconducting Conference
    • Place of Presentation
      シカゴ
    • Year and Date
      2008-08-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Fabrication and the evaluation of ex-situ MgB2 tapes with different gram connectivity2008

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      2008 Applied Superconducting Conference
    • Place of Presentation
      シカゴ
    • Year and Date
      2008-08-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Guideline for the fabrication and the evaluation of the grain connectivity for obtaining ex-situ MgB2 tapes with high Jc-B performance2008

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      IUMRS-international Conference on Electronic Materials 2008
    • Place of Presentation
      シドニー
    • Year and Date
      2008-07-28
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Ex-situ線材用MgB2粉体の作製指針2007

    • Author(s)
      中根茂行,A.Asthana,高橋健一郎,黒田恒生,熊倉浩明
    • Organizer
      2007年度秋季低温工学・超電導学会
    • Place of Presentation
      仙台
    • Year and Date
      2007-11-20
    • Related Report
      2008 Final Research Report
  • [Presentation] Ex-situ線材用MgB_2粉体の作製指針2007

    • Author(s)
      中根茂行, A. Asthana, 高橋健一郎, 黒田恒生, 熊倉浩明
    • Organizer
      2007年度秋季低温工学・超電導学会
    • Place of Presentation
      仙台
    • Year and Date
      2007-11-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Pressurizing effect for the precursor mixtures of starting MgB2 powder on the Jc-B performance of product ex-situ tape2007

    • Author(s)
      T. Nakane, K. Takahashi, T. Kuroda and H. Kumakura
    • Organizer
      20th International Symposium on Superconductivity
    • Place of Presentation
      つくば
    • Year and Date
      2007-11-06
    • Related Report
      2008 Final Research Report
  • [Presentation] Pressurizing effect for the precursor mixtures of starting MgB_2 powder on the Jc-B performance of product ex-situ tape2007

    • Author(s)
      T. Nakane, K. Takahashi, T. Kuroda and H. Kumakura
    • Organizer
      20th International Symposium on Superconductivity
    • Place of Presentation
      つくば
    • Year and Date
      2007-11-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] Fabricating guideline for starting powder of ex-situ MgB2 tape2007

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      European Conference on Applied Superconductivity 2007
    • Place of Presentation
      ブリュッセル
    • Year and Date
      2007-09-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Fabricating guideline for starting powder of ex-situ MgB_2 tape / Fabricating guideline for starting powder of ex-situ MgB_2 tape2007

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      European Conference on Applied Superconductivity 2007
    • Place of Presentation
      ブリュッセル
    • Year and Date
      2007-09-18
    • Related Report
      2007 Annual Research Report
  • [Presentation] Investigation of the superconductive MgB2 tape for improving the Jc-B performance2007

    • Author(s)
      T. Nakane and H. Kumakura
    • Organizer
      The Doyama Symposium on Advanced Materials
    • Place of Presentation
      東京
    • Year and Date
      2007-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] Investigation of the superconductive MgB_2 tape for improving the Jc-B performance2007

    • Author(s)
      T. Nakane, and H. Kumakura
    • Organizer
      The Doyama Symposium on Advanced Materials
    • Place of Presentation
      東京
    • Year and Date
      2007-09-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ex-situ MgB2線材用の粉体の作製2007

    • Author(s)
      中根茂行,黒田恒生,熊倉浩明
    • Organizer
      2007年度春季低温工学・超電導学会
    • Place of Presentation
      千葉
    • Year and Date
      2007-05-16
    • Related Report
      2008 Final Research Report
  • [Presentation] Ex-situ MgB_2線材用の粉体の作製2007

    • Author(s)
      中根茂行, 黒田恒生, 熊倉浩明
    • Organizer
      2007年度春季低温工学・超電導学会
    • Place of Presentation
      千葉
    • Year and Date
      2007-05-16
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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