A challenge for an innovative superconducting magnet introducing the self-joint method

• Project/Area Number: 19760593
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: Tohoku University
• Principal Investigator: ITO Satoshi Tohoku University, 大学院・工学研究科, 助教 (60422078)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,750,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥450,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
• Keywords: 電磁 / マグネット / 分割型高温超伝導マグネット / 高温超伝導ケーブル / バットジョイント / セルフジョイント / 機械的接合

Research Abstract

The self-joint technique using a material having negative thermal expansion coefficient and electromagnetic force is proposed as a mechanical joint method for a remountable high-temperature superconducting magnet developed for realization of a commercial fusion reactor achieving high economic efficiency and high maintenance performance. Through this study, the following results were obtained. DFRP having negative thermal expansion coefficient can be useful for a mechanical joint method. And low joint resistance can be achieved at high current value needed for a mechanical joint with electromagnetic force.

Research Products

• [Presentation] 金属ジャケット付BSCCO2223導体の機械的バットジョントの基礎評価 (2009)
  • Author(s): 伊藤悟
  • Organizer: 2009年度秋季低温工学・超電導学会
  • Place of Presentation: 岡山県岡山市
  • Year and Date: 2009-11-19
• [Presentation] 金属ジャケット付BSCCO2223導体の機械的バットジョントの基礎評価 (2009)
  • Author(s): 伊藤悟
  • Organizer: 2009年度秋季低温工学・超電導学会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2009-11-19
• [Presentation] Influence of Surface Roughness on Performance of Mechanical Butt Joint of Stacked BSCCO 2223 Cable (2009)
  • Author(s): Satoshi Ito
  • Organizer: 21st International Conference on Magnet Technology
  • Place of Presentation: Hefei, China
  • Year and Date: 2009-10-19
• [Presentation] Effect of Thermal Strain on the Mechanical Butt Joint of a Stacked HTS Cable with a Metal Jacket (2009)
  • Author(s): Satoshi Ito
  • Organizer: 21st International Conference on Magnet Technology
  • Place of Presentation: Hefei, China
  • Year and Date: 2009-10-19
• [Presentation] メタルジャケット付きBSCCO2223ケーブルのバットジョントの性能評価 (2008)
  • Author(s): 伊藤悟
  • Organizer: 2008年度秋季低温工学・超電導学会
  • Place of Presentation: 高知県高知市
  • Year and Date: 2008-11-12
• [Presentation] Mechanical Butt Joint of HTS Cable with DFRP for Remountable HTS Magnet (2008)
  • Author(s): Satoshi Ito
  • Organizer: 16th Pacific Basin Nuclear Conference
  • Place of Presentation: 青森県青森市
  • Year and Date: 2008-10-17
• [Presentation] 分割型高温超伝導マグネットのためのセルフジョイント法の提案 (2007)
  • Author(s): 伊藤悟
  • Organizer: 2007年度秋季低温工学・超電導学会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2007-11-21
• [Presentation] Proposal of self-jointing system for remountable HTS magnet (2007)
  • Author(s): Satoshi Ito
  • Organizer: The 20th Biennial Conference on Magnet Technology
  • Place of Presentation: Philadelphia, PA, USA
  • Year and Date: 2007-08-27