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Promotion of phase formation and introduction of pinning centers in Bi based high Tc superconductors, and their applications to tapes and bulks

Research Project

Project/Area Number 09355023
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Structural/Functional materials
Research InstitutionKitami Institute of Technology (1999)
Tohoku University (1997-1998)

Principal Investigator

MAEDA Hiroshi  Department of Materials Science, Professor, 工学部, 教授 (00281981)

Co-Investigator(Kenkyū-buntansha) 張 平祥  豊橋技術科学大学, 工学部, 助教授 (70314086)
KIKUCHI Michio  Tohoku University, Institute for Materials Research, Research Associate, 金属材料研究所, 助手 (30204837)
SATO Mitsunori  Department of Materials Science, Professor, 工学部, 教授 (40281878)
HIRAGA Kenji  Tohoku University, Institute for Materials Research, Professor, 金属材料研究所, 教授 (30005912)
WATANABE Katsuo  Tohoku University, Institute for Materials Research, Associate Professor, 金属材料研究所, 助教授 (30143027)
ZHANG Ping-Xiang  Toyohashi University of Technology, Associate Professor
青木 清  北見工業大学, 工学部, 教授 (70124542)
太田 昭男  豊橋技術科学大学, 工学部, 教授
MUSTAFA Yavu  東北大学, 金属材料研究所, 助手 (00302216)
佐藤 謙一  住友電気工業(株), 超伝導研究部, 部長
田中 吉秋  科学技術庁, 金属材料技術研究所, 研究室長
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥32,100,000 (Direct Cost: ¥32,100,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1998: ¥9,300,000 (Direct Cost: ¥9,300,000)
Fiscal Year 1997: ¥20,000,000 (Direct Cost: ¥20,000,000)
KeywordsBi2223 & Bi2212 / V-doping / Ag-sheathed multifilamentary tape / Sr-V-O barrier / critical current density / a.c.loss / magnetic melt processing / crystal orientation / Bi2223 / Agシース多芯線 / Sr-V-O絶縁バリアー / Bi2212 / 磁場中結晶育成 / 酸化物高温超伝導体 / 添加効果(V,Ir,Fe) / 高温超伝導線材 / 臨界電流密度Jc / ピン止め点 / PIT(Agシース)法 / 高温超伝導体 / Bi系酸化物超伝導線材 / 銀シース法
Research Abstract

Bi oxide superconductors (Bi2212. Bi2223) are the most important candidates for practical use. For practical applications high critical current density Jc and low a.c.losses will be required.
we found that a considerable amount of V added into Bi oxide superconductors greatly enhances the Bi2223 formation without any degradation of Tc. The added V exists as Sr6V2O11 (SVO) plate-like particles, which play an important role to promote the formation. Using V doped Bi2223 powder, we prepared Ag-sheathed tapes with monofilament and multifilaments by the powder-in-tube method. Jc values increase with increasing the V content up to 0.15 and this tendency becomes more and more conspicuous for multifilametary tapes. Furthermore, we prepared Ag-sheathed Bi2223 multifilamentary tapes with a layer of SVO barrier outside and inside each filament. The SVO barrier layers have no bad effects on the critical current density Jc of the tapes and decrease a.c.losses obviously. Jc increases obviously in the tapes with barriers both inside and outside each filament. Therefore, the SVO will be one of the important candidates for barriers to reduce a.c.losses.
Magnetic melt processing (MMP) or crystal growth in high magnetic field have been applied to Bi2212 bulks and thick tapes in order to achieve high crystal orientation. For them no techniques have been developed so far. Magnetic field tends to orient Bi2212 grains with the c-axis parallel to it and the degree of texture increases notably with increasing the magnetic field. Therefore, the Jc values of Bi2212 bulks and thick tapes are improved obviously. This shows that MMP is a promising method to prepare Bi2212 bulks and thick tapes with high grain orientation and high Jc values.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (85 results)

All Other

All Publications (85 results)

  • [Publications] H.Maeda,K.Kakimoto,M.Kikuchi,J.O.Willis,K.Watanabe,Y.Tanaka and H.Kumakura: "Microstructure and superconducting properies of V doped Bi2223 tapes"Applied Superconductivity. 5. 151-156 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Ikeda,Y.Tanaka,R.Yoshizaki,M.Ishizuka,K.Yoshikawa,T.Matsudaira and H.Maeda: "Magnetic properties Ag-Cu alloy sheathed (Bi,Pb)2Sr2Ca2Cu3Oy tapes"Advances in Superconductivity. 9. 847-850 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Ishizuka,Y.Tanaka,T.Hashimoto,H.Maeda: "Influences of Cu composition and sintering condition in Bi-2223 tapes using Ag-Cu alloy sheath doped with Ti, Zr or Hf"Physica C. 290. 265-274 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda: "High temperature superconducting wires and some of their applications"Trends in Materials Science(Ed.S.Radhakrishna,Narosa Pub.). 311-321 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Yavuz,H.Maeda,L.Vance,H.K.Liu,S.X.Dou: "Phase development and Kinetics of high temperature Bi-2223 phase"Journal of Alloys and Compounds. 281. 280-289 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Yavuz,H.Maeda,L.Vance,H.K.Liu,S.X.Dou: "Effect of ball milling materials and methods on powder processing of Bi2223 superconductors"Superconductors Science and Technology. 11. 1153-1159 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S.Kambe,Y.C.Guo,S.X.Dou,H.K.Liu,Y.Wakahara,H.Maeda,K.Kakimoto and N.Yavuz: "Effect of pressing and Li doping on superconducting properties of Ag-sheathed Bi-2223 tapes"Superconductors Science and Technology. 11. 1061-1064 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Yavuz,H.Maeda,L.Vance,H.K.Liu,S.X.Dou: "Powder production methods of Bi-Pb-Sr-Ca-Cu-O superconductors"Superconductors Science and Technology. 11. 1166-1172 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,K.Kakimoto,M.Kikushi,J.O.Willis,K.Watanabe,Y.Tanaka and H.Kumakura: "Effect of V additions on Bi2223 phase formation and superconducting properties of (Bi,Pb)2Sr2Ca2Cu3Oz"Advances in Cryogenic Engineering(Materials). 44. 561-567 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Ikeda,Y.Tanaka,R.Yoshizaki,M.Ishizuka,K.Yoshizawa and H.Maeda: "Microstructures and pinning forces of Ag-Cu sheathed tapes"Advances in Superconductivity. 10. 787-790 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 竹内孝夫、根本善弘、前田弘、伊藤喜久男、井上廉、小菅通雄、湯山道也、和田仁: "V3Si 極細多芯超伝導線の微視的組織と電磁特性"日本金属学会誌(日本金属学会論文賞受賞). 62. 727-734 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda: "Bi-2223 tape development in Japan"Proceedings of the 8th US-Japan Workshop on High Tc Superconductors(Ed.J.Schwartz). 10-16 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Yavuz,H.Faqir and H.Maeda: "Phase development of high tempertature Bi-2223 phase and effect of doping on formation rate"Proceedings of SPIE(Society of Photo-Optical Instrumentation Engineers)-Superconducting and Related Oxides : Physics and Nanoengineering III(Eds.D.Pavuna and I.Bozovic,SPIE,1998). 3481. 123-133 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,K.Kakimoto,M.Kikuchi and K.Watanabe: "Effect of V,Ir-doping on the Jc properties of Bi2223 tapes"IEEE Transactions on Applied Superconductivity. 9. 2541-2544 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X.Zhang,H.Maeda,L.Zhou,C.S.Li,Z.Z.Duan and H.L.Zheng: "Fabrication and poperties of high Jc multifilamentary(Bi,Pb)-2223 tapes with Ag-alloy sheath"IEEE Transactions on Applied Superconductivity. 9. 2770-2773 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,W.P.Chen,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa,H.Kitaguchi,H.Kumakura and K.Itoh: "Microstructure and properties of Bi2212 tapes and bulks grown in high magnetic field"Advances in Superconductivity XI(1999)823-826. 11. 823-826 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X.Zhang,H.Maeda,L.Zhou,A.K.Wang,P.J.Ji: "Effect of Ag foils on properties of (Bi,Pb)-2223 multifilamentary tapes"Advances in Superconductivity XI (1999) 855-858. 11. 855-858 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe and M.Motokawa: "Effect of Ag-doping on texture development of Bi2212 bulk ceramics in high magnetic field"Journal of Low Temperature Physics. 117. 771-775 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa,H.Kitaguchi,and H.Kumakura: "Microstructures and properties of Bi2212/Ag tapes grown in high magnetic fields"Physica C. 324. 172-176 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe and M.Motokawa: "Processing of Ag-doped Bi2212 bulks in high magnetic fields"Physica C. 320. 96-100 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa,H.Kumakura and K.Itoh: "Textured crystal growth of Bi(Pb)2212 bulks ceramics in high magnetic field"Journal of Crystal Growth. 204. 69-77 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa: "Effect of precursor composition on textured crystal grown of Bi2212 bulks in high magnetic field : investigations on Pb-substitution and Ag-doping"Physica C. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,P.X.Zhang,K.Watanabe,T.Matsushita and E.S.Otabe: "Fabrication and properties of Ag-sheathed Bi2223 tapes with Sr6V2O11 oxide barriers between filaments"Physica C. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X.Zhang,H.Maeda,A.Oota,R.Inada,T.Udo,Y.Takatori,S.Sakamoto,T.Yamamoto and L.Zhou: "Transport a.c.losses of (Bi,Pb)-2223 multifilamentary tapes with different distribution"Advances in Superconductivity. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa: "Introducing a melt processing into fabrication of Bi(Pb)2223 bulks"Advances in Superconductivity. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,P.X.Zhang,K.Watanabe,T.Matsushita and E.S.Otabe: "Jc properies of Ag-sheathed Bi2223 tapes with Sr-V-oxide barriers"Advances in Superconductivity. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X.Zhang,H.Maeda,A.Oota,R.Inada and W.P.Chen: "Fabrication and properties of (Bi,Pb)-2223 tapes with different lead content"Advances in Superconductivity. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa,H.Kitaguchi,and H.Kumakura: "Jc enhancement of Bi2212/Ag composite tapes my magnetic melt processing"Proceedings of the 4th European Conference on Applied Superconductivity. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 前田弘: "Bi系超伝導体ー神様からの贈り物"応用物理. 67. 932-934 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 前田弘: "Bi系超伝導体の生まれからを見つめて"低温工学. 35. 56-64 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, K. Kakimoto. M. Kikuchi. J.O. Willis, K. Watanabe Y. Tanaka and H. Kumakura: "Microstructure and superconducting properies of V doped Bi2223 tapes"JOURNAL VOLUME-NUMBER PAGES CONCERLNED YEAR Applied Superconductivity. 5. 151-156 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Ikeda, Y. Tanaka, R. Yoshlzaki, M. Ishizuka, K. Yoshikawa, T. Matsudaira and H. Maeda: "Magnetic properties Ag-Cu alloy sheathed (Bi,Pb )2Sr2Ca2Cu30 y tapes"Advances in Superconductivity. 9. 847-850 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Ishizuka, Y. Tanaka, T. Hashimoto, H. Maeda: "Influences of Cu composition and sintering candition in Bi-2223 tapes using Ag-Cu alloy sheath doped with Ti, Zr or Hf"Physica C. 290. 265-274 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda: "High temperature superconducting wires and some of their applications"Trends in Materials Science. 311-321 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yavuz, H. Maeda, L. Vance, H.K. Liu and S.X. Dou: "Phase development and kinetics af high temperature Bi-2223 phase"Journal of Alloys and Compunds. 28. 280-289 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yavuz, H. Maeda, L. Vance, H.K. Liu and S.X. Dou: "Effect of ball milling materiais and methods on powder processing of Bi2223 superconductors"Superconductors Science and Technology. 11. 1153-1159 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Kanibe, Y.C. Guo, S.X. Dou, H.K. Liu, Y. Wakahara, H. Maeda, K. Kakimoto and M. Yavuz: "Effect of pressing and Li doping on superconducting properties of Ag-sheathed Bi-2223 tapes"Superconductors Science and Technology. 11. 1061-1064 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yavuz, H. Maeda, L. Vance, H.K. Liu and S.X. Dou: "Powder production methods of Bi-Pb-Sr-Ca-Cu-O superconductors"Superconductors Science and Technology. 11. 1166-1172 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, K. Kakimoto, M. Kikuchi, J.O. Willis, K. Watanabe, Y. Tanaka and H. Kurnakura: "Effect of V additions on Bi2223 phase formation and superconducting properties of (Bi,Pb )2Sr2Ca2Cu3 Oz"Advances in Cryogenic Engineering. 44. 561-567 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Ikeda, Y. Tanaka. R. Yoshizaki, M. Ishizuka, K. Yoshizawa and H. Maeda: "Microstructures and pinning forces of Ag-Cu sheathed tapes"Advances in Superconductivity. 9. 787-790 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Takeuchi, Y. Nemoto, H. Maeda, K. Itoh, K. Inoue, M. Kosuge, M. Yuyanra and H. Wada: "Microstructure and electromagnetic characteristics of multifilament V3Si supeconductors (in Japanese)"Journal of Japanese Institute of Metal. 62. 727-734 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda: "B1-2223 tape development in Japan"Proceedings of the 8th US-Japan Workshop on High Tc Superconductors. 10-16 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yavuz, H. Faqir and H. Maeda: "Phase development of high temperature Bi-2223 phase and effect of doping on formation rate"Proceedings of SPIE. 3481. 123-133 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, K. Kakimoto, M. Kikuchi and K. Watanabe: "Effect of V, Ir -doping on the Jc properties of Bi2223 tapes"IEEE Transactions on Applied Superconductivity. 9. 2541-2544 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P. X. Zhang, H. Maeda, L. Zhou, C.S. Li, Z.Z. Duan and H. L. Zheng: "Fabrication and properties of high Jc multifilamentary (Bi,Pb)-2223 tapes with Ag-alloy sheath"IEEE Transactions on Applied Superconductivity. 9. 2770-2773 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, W.P. Chen, K. Kakimoto, P.X. Zhang, K. Watanabe, M. Motokawa, H. Kitaguchi, H. Kumakura and K. Itoh: "Microstructure and properies of Bi2212 tapes and bulks grown in high magnetic field"Advances in Superconductivity. 11. 823-826 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P. X. Zhang, H. Maeda, L. Zhou, A.K. Wang, P.J. Ji: "Effect of Ag foils on properties of (Bi,Pb)-2223 multifilamentary tapes"Advances in Superconductivity. 11. 855-858 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Maeda, K. Kakimoto. P.X. Zhang, K. Watanabe and M. Motokawa: "Effect of Ag-doping on texture development of Bi221 2 bulk cerarnics in high magnetic field"Journal of Low Temperature Physic. 117. 771-775 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Maeda, K. Watanabe, M. Motokawa, H. Kitaguchi, and H. Kumakura: "Microstructures and properties of Bi22 12/Ag tapes grown in high magnetic fields"Physica C. 324. 172-176 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Maeda, K. Kakimoto. P.X. Zhang, K. Watanabe and M. Motokawa: "Processing of Ag-doped Bi2212 bulks in high magnetic fields"Physica C. 320. 96-100 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Maeda, K. KaJd:moto, P.X. Zhang, K. Watanabe, M. Motokawa. H. Kumakura and K. Itoh: "Textured crystal growth of Bi(Pb)22 12 bulk ceramics in high magnetic field"Journal of Crystal Growth. 204. 69-77 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W P. Chen, H. Maeda, k. Watanabe. M. Motokawa: "Effect of precursor composition on textured crystal growth of Bi2212 bulks in high magnetic field : investigations on Pb-substitution and Ag-doping"Physica C. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, P.X. Zhang, K. Watanabe, T. Matsushita and E.S. Otabe: "Fabrication and properties of Ag-sheathed Bi2223 tapes with Sr6V2O11 oxide barriers between filaments"Physica C. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X. Zhang, H. Maeda. A. Oota, R. Inada, T, Uno, Y. Takatori, S Sakanroto, T. Yamamoto and L. Zhou: "Transport a.c. losses of (Bi,Pb)-2223 multifilanrentary tapes with different distribution"Advances in Superconductivity. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Meada, K. Watanabe and M. Motokawa: "Introducing a melt processing into fabrication of Bi(Pb)2223 bulks"Advances in Superconductivity.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda, P.X. Zhang, K. Watanabe, T. Matsushita and E. S. Otabe: "Jc properies of Ag-sheathed Bi2223 tapes with Sf-V-oxide barriers"Advances in Superconductivity.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] P.X. Zhang, H. Maeda, A. Oota, R. Inada and W.P. Chen: "Fabrication and properties of (Bi ,Pb)-2223 tapes with different leadcontent"Advances in Superconductivity.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.P. Chen, H. Maeda, K. Watanabe, M. Motokawa, H. Kitaguchi and H. Kumakura: "Jc enhancement of Bi2212/Ag composite tapes my magnetic melt processing"Proceedings of 4th European Conference on Applied Superconductivity. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda: "Bi-based high-Tc superconductors A present from God (in Japanese)"Ono Butsuri. 67. 932-934 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maeda: "Being impressed by the obvious development of Bi-based high Tc superconductors since their discovery (in Japanese)"Cryogenic Engineering. 35. 56-64 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Maeda,K.Kakimoto,M.Kikuchi,K.Watanabe: "Effect of V,Ir-doping on the Jc properties of Bi2223 tapes"IEEE Transactions on Applied Superconductivity. 9. 2541-2544 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] P.X.Zhang,H.Maeda,L.Zhou,C.S.Li,Z.Z.Duan,H.L.Zheng: "Fabrication and properties of high Jc multifilamentary (Bi,Pb)-2223 tapes with Ag-alloy sheath"IEEE Transactions on Applied Superconductivity. 9. 2770-2773 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maeda,W.P.Chen,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa,et al.: "Microstructure and properties of Bi2212 tapes and bulks grown in high magnetic field"Advances in Superconductivity. 11. 823-826 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] P.X.Zhang,H.Maeda,L.Zhou,A.K.Wang,P.J.Ji: "Effect of Ag foils on properties of (Bi,Pb)-2223 multifilamentary tapes"Advances in Superconductivity. 11. 855-858 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa: "Effect of Ag-doping on texture development of Bi2212 bulk ceramics in high magnetic field"Journal of Low Temperature Physics. 117. 771-775 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa,H.Kitaguchi,H.Kumakura: "Microstructures and properties of Bi2212/Ag tapes grown in high magnetic fields"Physica C. 324. 172-176 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa: "Processing of Ag-doped Bi2212 bulks in high magnetic fields"Physica C. 320. 96-100 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Kakimoto,P.X.Zhang,K.Watanabe,M.Motokawa,et al.: "Textured crystal growth of Bi(Pb)2212 bulk ceramics in high magnetic field"Journal of Crystal Growth. 204. 69-77 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa: "Effect of precursor composition on textured crystal growth of Bi2212 bulks in high magnetic field : investigations on Pb-substitution and Ag-doping"Physica C. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maeda,P.X.Zhang,K.Watanabe,T.Matsushita,E.S.Otabe: "Fabrication and properties of Ag-sheathed Bi2223 tapes with Sr6V2011 oxide barriers between filaments"Physica C. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] P.X.Zhang,H.Maeda,A.Oota,R.Inada,T.Uno,Y.Takatori,et al.: "Transport a.c. losses of (Bi,Pb)-2223 multifilamentary tapes with different distribution"Advances in Superconductivity. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa: "Introducing a melt processing into fabrication of Bi(Pb)2223 bulks"Advances in Superconductivity. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maeda,P.X.Zhang,K.Watanabe,T.Matsushita,E.S.Otabe: "Jc properties of Ag-sheathed Bi2223 tapes with Sr-V-oxide barriers"Advances in Superconductivity. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] P.X.Zhang,H.Maeda,A.Oota,R.Inada,W.P.Chen: "Fabrication and properties of (Bi,Pb)-2223 tapes with different lead content"Advances in Superconductivity. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] W.P.Chen,H.Maeda,K.Watanabe,M.Motokawa,H.Kitaguchi,H.Kumakura: "Jc enhancement of Bi2212/Ag composite tapes by magnetic melt processing"Proceedings of the 4th European Conference on Applied Superconductivity. (in press).

    • Related Report
      1999 Annual Research Report
  • [Publications] 前田 弘: "Bi系超伝導体の生まれからを見つめて"低温工学. 35. 56-64 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Ishizuka,Y.Tanaka,H.Maeda: "Magnetic field and temperature dependence of critical current density in Hf-doped Bi-2223/Ag-Cu alloy sheathed tapes"Physica C. 329. 258-266 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Yavuz: "Phase Development of High Temprature Bi-2223 Phase and Effect of Doping on Formation Rate" Proceedings of SPIE. 3481. 123-133 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yavuz: "Phase Development and Kinetics of High Temprature Bi-2223 Phase" Journal of Alloys and Compounds. 281. 280-289 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yavuz: "Powder Production Methods of Bi-Pb-Sr-Ca-Cu-O Superconductors" Supercond.Sci.Technol.11. 1166-1172 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yavuz: "Effect of Ball Milling Materials and Methods on Ponder Processing of Bi-2223 Superconductors" Supercond.Sci.Technol.11. 1153-1159 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Kambe: "Effect of Pressing and Li Doping on Superconducting properties of Ag-Sheathed Bi-2223 Tapes" Supercond.Sci.Technol.11. 1061-1064 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] P.X.Zhang: "Fabrication and Properties of High Jc Multifilamentary (Bi,Pb)-2223 Tapes with Ag-alloy Seath" IEEE Trans.Appl.Superconductivity. 印刷中. (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Maeda: "Microstructures and Jc Properties of Vand Ir Doped Bi2223 Tapes" IEEE Trans.Appl.Superconductivity. 印刷中. (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Maeda: "Effect of V Additions on Bi2223 Phase Formation and Superconducting Properties of (Bi,Pb)_2Sr_2Ca_2Cu_3O_2" Advances in Cryogenic Engineering(Materials). 44. 561-567 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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