Phase Composition and Compatibilities at 930° to 950°C in the System Europium(III) Oxide‐Barium Oxide‐Copper(II) Oxide in Air

C. N. Pleczulewski*, J. E. McAdams, T. O. Mason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Phase composition and compatibilites at 930° to 950°C were determined for the system Eu2O3–BaO–CuO in air. The binary compound Eu2CuO4 dissolves Ba to the extent 0 x 0.02 in Eu2‐xBaxCuO4, whereas the other binary compounds, Eu2BaO4 and BaCuO2, do not exhibit solid solubility. Three ternary compounds were obtained, Eu2BaCuO5 and two solid solution phases. The first contains the 90 K ‘123’ superconductor and has solubility limits represented by Eu1+xBa2‐xCu3O7±y, where 0 x 0.5. The second has a solubility limit represented as Eu1+xBa8‐xCu4Oy, where 0 x 0.44. The limited solid solution range of this phase provides insight concerning the probable solid solution range of the analogous phase in the Y2O3‐BaO‐CuO system.

Original languageEnglish (US)
Pages (from-to)3088-3090
Number of pages3
JournalJournal of the American Ceramic Society
Volume73
Issue number10
DOIs
StatePublished - Oct 1990

Keywords

  • europium oxide
  • phases
  • solubility
  • superconductors
  • temperature dependence.

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Phase Composition and Compatibilities at 930° to 950°C in the System Europium(III) Oxide‐Barium Oxide‐Copper(II) Oxide in Air'. Together they form a unique fingerprint.

Cite this