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Fabrication and Properties of Superconducting Ba-Y-Cu-O and Bi-Ca-Sr-Cu-O Tapes

  • Toshiya Matsubara
  • Yasuji Yamada
  • Jun-Ichirou Kase
  • Naoshi Irisawa
  • Jun-Ichi Shimoyama
  • Michio Mitsuhashi
  • Mikio Sasaki
  • Hiroshi Abe
  • Takeshi Morimoto
Conference paper

Abstract

Ba2YCu3Oy green tapes were fabricated by a doctor blade method and sintered at temperatures ranging from 910 to 1010C to examine the effect of sintering temperature on their properties. The tape sintered at 930 C showed the largest critical current density (Jc) of 1500 A/cm2 at 77 K. It was concluded that the Jc of our tapes are determined by the compromise of porosity, portion of superconducting phase and the loss of contact at the grain boundary.

Bi-Ca-Sr-Cu-0 green tapes were also fabricated by a doctor blade method from powders with nominal composition of Bi1.4Pb0.6Ca2Sr2Cu3.6Oy. The tape with the critical temperature (Tc) of 106K and Jc of 100 A/cm2 at 77K was obtained by sintering green tape made of the powder containing high critical temperature phase.

Keywords

Sinter Temperature Critical Current Density Peak Height Ratio Green Tape Auger Electron Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1).
    T. GOTO, et. al., Jpn. J. Appl. Phys. 26 (1987) L1527–L1528ADSGoogle Scholar
  2. 2).
    M. ISHIL, et. al., ibid 26 (1987) L1959–L1960ADSGoogle Scholar
  3. 3).
    K. TOGONO, et. al., ibid 27 (1988) L45HL47Google Scholar

Copyright information

© Springer Japan 1989

Authors and Affiliations

  • Toshiya Matsubara
    • 1
  • Yasuji Yamada
    • 1
  • Jun-Ichirou Kase
    • 1
  • Naoshi Irisawa
    • 1
  • Jun-Ichi Shimoyama
    • 1
  • Michio Mitsuhashi
    • 1
  • Mikio Sasaki
    • 1
  • Hiroshi Abe
    • 1
  • Takeshi Morimoto
    • 1
  1. 1.Research CenterAsahi Glass Co., Ltd.Kanagawa-ku, Yokohama, 221Japan

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