Melt Growth of Bi-Sr-Ca-Cu-O Superconducting Sheets and Filaments

  • T. F. Ciszek
  • C. D. Evans


We utilized a liquid-phase process for the solidification of high-Tc superconducting sheets and filaments from a melted mixture of the oxide powders Bi2O3, SrO, CaO, and CuO in approximately 1:2:2:2 molar ratios. Alumina sheets up to 13-mm wide and various filament materials with diameters ranging from 100 µm to 2.5 mm were coated with thin Bi-Sr-Ca-Cu-O layers by passage through the liquid mixed oxides and subsequent solidification. Coating rates between 2 and 1800 mm/min were used, and film thicknesses between 5 µm and 500 µm were attained. After annealing at 875°C for several hours, the coatings exhibited a superconducting transition onset near 80 K. We also report on a Bi-Sr-Ca-Cu-O wire casting technique.


Continuous Coating Sheet Coating Melted Mixture Solar Energy Research Institute Thin Film Deposition Technique 
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  1. 1.
    T.F. Ciszek, J.P. Coral, C.D. Evans, and H. Katayama-Yoshida, J. of Crystal Growth 91 (1988) 312.ADSCrossRefGoogle Scholar
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    R.B. Goldfarb, T.F. Ciszek, and C.D. Evans, J. Appl. Phys. 64 (1988) 5914.ADSCrossRefGoogle Scholar
  3. 3.
    T.F. Ciszek and E. Tarsa, elsewhere in this publication.Google Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • T. F. Ciszek
    • 1
  • C. D. Evans
    • 1
  1. 1.Solar Energy Research InstituteGoldenUSA

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