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BPSCCO Superconductor with Addition of Ag2O Synthesized Under Electrical Field

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Abstract

Ag2O-doped (1.2% wt.) nitrate freeze-dried powders (Bi : Pb : Sr : Ca : Cu = 1.7 : 0.3 : 2 : 2.5 : 3.5) were processed under an external electrical field and 17.5 MPa pressure at 800°C, for 4 min in vacuum. Final heat treatments (HT) were applied at 835–850°C for 70 h. in air (Bi, Pb)2Sr2CaCu2O x (2212-phase) was formed by electrical field processing in just 4 min. Electrical field application enhanced (Bi, Pb)2Sr2Ca2Cu3O y (2223-phase) formation during final HT. Ag2O additions to field sintered BSCCO ceramics increased the amount of 2223-phase and the zero resistance critical temperature (T e(R=0)) by ∼ 4 k.

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Authors and Affiliations

  1. National Institute for Materials Physics, POB MG-7, Bucharest-Magurele, R-76900, Romania

    G. Aldica, P. Badica & M.-C. Bunescu

  2. Department of Chemical Engineering and Materials Science, University of California, Davis, California, 95616-5294

    J. R. Groza

Authors
  1. G. Aldica
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  2. J. R. Groza
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  3. P. Badica
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  4. M.-C. Bunescu
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Aldica, G., Groza, J.R., Badica, P. et al. BPSCCO Superconductor with Addition of Ag2O Synthesized Under Electrical Field. Journal of Superconductivity 16, 1001–1005 (2003). https://doi.org/10.1023/A:1026295408106

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