Partial Bi‐Sr‐Cu‐O Subsolidus Diagram at 800°C with and without Lithium Carbonate

J. A. Saggio*, K. Sujata, J. Hahn, S. J. Hwu, Kenneth Poeppelmeier, Thomas O Mason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Solid‐phase relationships have been determined for the Bi2O3–SrO–CuO system at 800°C in air with and without Li2CO3 mineralizer. Two ternary compounds were detected with Bi:Sr:Cu ratios of approximately 2:2:1 and a solid‐solution phase 11−;x:9+x:5 with 0x0.4. The solid‐solution phase is a 9 K super‐conductor at x=0.4. Two additional compounds with Bi:Sr:Cu ratios of approximately 4:9:1 and 2:7:2 are apparently stabilized by the presence of Li2CO3, but do not form without it. X‐ray crystallographic data are provided for each compound. Ramifications for quaternary Bi:Sr:Ca:Cu‐O superconductors are discussed.

Original languageEnglish (US)
Pages (from-to)849-853
Number of pages5
JournalJournal of the American Ceramic Society
Volume72
Issue number5
DOIs
StatePublished - Jan 1 1989

Keywords

  • bismuth
  • copper
  • phases
  • strontium
  • superconductivity

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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