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 language||English (US)|
|Number of pages||5|
|Journal||Journal of the American Ceramic Society|
|State||Published - Jan 1 1989|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry