The High-Tc superconducting solid solution Bi2+x(Sr,Ca)3Cu2O8+d (2212 Phase)—chemical composition and superconducting properties

Authors

  • Dr. Peter Majewski,

    Corresponding author
    1. Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaft Heisenbergstrasse 5, W-7000 Stuttgart 80 (FRG)
    • Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaft Heisenbergstrasse 5, W-7000 Stuttgart 80 (FRG)
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  • Huang-Lung Su,

    1. Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaft Heisenbergstrasse 5, W-7000 Stuttgart 80 (FRG)
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  • Dr. Bernhard Hettich

    1. Hoechst AG, Materialforschung W-6230 Frankfurt a. M. 80 (FRG)
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Abstract

Superconducting bulk ceramics in the form of rods, tubes, rings or blocks are best produced from the 2212 phase of the title system. Until now, however, the 2212 single-phase region, which also involves regions of varying Sr/Ca ratio and varying Bi contents, has not been unambiguously characterized. In this work, the 2212 single-phase region is defined and the critical temperature (Tc) correlated with the chemical composition.

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