Abstract
Solid-phase relationships have been determined for the Bi 2O 3-SrO-CuO system at 800°C in air with and without Li 2CO 3 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 0≤x≤0.4. The solid-solution phase is a 9 K superconductor 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 Li 2CO 3, but do not form without it. X-ray crystallographic data are provided for each compound. Ramifications for quaternary Bi:Sr:Ca:Cu-0 superconductors are discussed.
Original language | English |
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Pages (from-to) | 849-853 |
Number of pages | 5 |
Journal | Journal of the American Ceramic Society |
Volume | 72 |
Issue number | 5 |
DOIs | |
Publication status | Published - May 1989 |
Keywords
- Bismuth
- Copper
- Phases
- Strontium
- Superconductivity
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry