Fabrication and characterization of multifilamentary Bi-2223 tapes with inter-filament Ni barrier for the practical application to HTS cable.

• Project/Area Number: 19560305
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 電力工学・電気機器工学
• Research Institution: Miyakonojo National College of Technology
• Principal Investigator: NOJI Hideki Miyakonojo National College of Technology, 電気情報工学科, 准教授 (30280340)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 超電導線材 / Bi-2223 超電導体 / 超電導ケーブル / 高温超電導体 / 超電導テープ / 金属バリア / 臨界電流値 / 臨界電流密度

Research Abstract

7 芯Ni バリア超電導テープを作製したが、既存の機器ではNi バリアを十分薄くすることができず、臨界電流値はゼロであった。一方、作製方法の改善で7 芯バリア無し超電導テープの臨界電流値は6.4 A まで向上した。超電導テープの通電損失を評価するため、LabVIEW により自動計測システムを構築した。住友電工および古河電工が作製した超電導ケーブルを対象として交流損失を計算し、測定値と一致する結果を得た。

Research Products

• [Journal Article] Numerical study on self-field losses of 30 m BSCCO HTS transmission cable (2009)
  • Author(s): H. Noji
  • Journal Title: Cryogenics 49 Pages: 34-38
  • Peer Reviewed
• [Journal Article] Numerical study on self-field losses of 30 m BSCCO HTS transmission cable. (2009)
  • Author(s): H. Noji
  • Journal Title: Cryogenics 49 Pages: 34-38
  • Peer Reviewed
• [Journal Article] Self-field losses in 1 m HTS conductor consisted of YBCO tapes (2007)
  • Author(s): H. Noji
  • Journal Title: Cryogenics 47 Pages: 343-347
  • Peer Reviewed
• [Journal Article] Numerical analysis of the AC losses of 500-m HTS power cable in Super-ACE project (2007)
  • Author(s): H. Noji
  • Journal Title: Cryogenics 47 Pages: 94-100
  • Peer Reviewed
• [Journal Article] Numerical analysis of the AC losses of 500-m HTS power cable in Super-ACE project (2007)
  • Author(s): H.Noji
  • Journal Title: Cryogenics 47 Pages: 94-100
  • Peer Reviewed
• [Journal Article] Self-field losses in 1 m HTS conductor consisted of YBCO tapes (2007)
  • Author(s): H.Noji
  • Journal Title: Cryogenics 47 Pages: 343-347
  • Peer Reviewed
• [Presentation] Numerical study on self-field losses of HTS model cable comprising strips of YBCO tapes (2008)
  • Author(s): H. Noji
  • Organizer: International Symposium on Superconductivity
  • Place of Presentation: Tsukuba (Japan)
  • Year and Date: 2008-10-28
• [Presentation] Bi-2223 超電導テープの作製と評価 (2008)
  • Author(s): 中山祐輔、野地英樹
  • Organizer: 高専シンポジウム
  • Place of Presentation: 久留米市石橋文化センター
  • Year and Date: 2008-01-26
• [Presentation] Bi-2223超電導テープの作製と評価 (2008)
  • Author(s): 野地, 英樹
  • Organizer: 高専シンポジウム
  • Place of Presentation: 久留米市石橋文化センター
  • Year and Date: 2008-01-26
• [Presentation] Bi-2212単結晶の作製と磁気特性測定 (2008)
  • Author(s): 野地, 英樹
  • Organizer: 高専シンポジウム
  • Place of Presentation: 久留米市石橋文化センター
  • Year and Date: 2008-01-26
• [Presentation] Numerical study on self-field losses of HTS model cable comprising strips of YBCO tapes. (2008)
  • Author(s): H. Noji
  • Organizer: International Symposium on Superconductivity Japan
  • Place of Presentation: Tsukuba, Japan
• [Presentation] Calculation of self-field losses of YBCO HTS cable conductor by electric-circuit model (2007)
  • Author(s): H. Noji
  • Organizer: International Symposium on Superconductivity
  • Place of Presentation: Tsukuba (Japan)
  • Year and Date: 2007-11-06
• [Presentation] Calculation of self-field losses of YBCO HTS cable conductor by electric-circuitmodel (2007)
  • Author(s): H.Noji
  • Organizer: International Symposium on Superconductivity
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2007-11-06