Subsolidus phase equilibria of coexisting high-Tc Pb-2223 and 2212 superconductors in the (Bi,Pb)-Sr-Ca-Cu-O system under 705% O2

W. Wong-Ng, L. P. Cook, F. Jiang, W. Greenwood, U. Balachandran, M. Lanagan

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19 Scopus citations

Abstract

The subsolidus phase relationships of the high-Tc 2223 superconductor in the (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) system have been examined at 810-820 °C. All experiments were carried out at ambient pressure in a 7.5% O2 (92.5% Ar) atmosphere. Eleven phases were found to exist in equilibrium with the 2223 phase. These 11 phases include CuO and 10 oxide solid solutions. From among these phases, a total of 48 five-phase combinations including the 2223 and 2212 phases were investigated experimentally, and 16 equilibrium assemblages were found which define a multicomponent compositional space corresponding to the 2223 + 2212 solid-state compatibility region. The subsolidus data form a partial basis for future investigation of the Pb-2223 primary phase field.

Original languageEnglish (US)
Pages (from-to)2855-2865
Number of pages11
JournalJournal of Materials Research
Volume12
Issue number11
DOIs
StatePublished - Nov 1997

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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