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 R Poeppelmeier; Thomas O Mason

doi:10.1111/j.1151-2916.1989.tb06231.x

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 R Poeppelmeier, Thomas O Mason

Northwestern University

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

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
Pages (from-to)	849-853
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	72
Issue number	5
DOIs	https://doi.org/10.1111/j.1151-2916.1989.tb06231.x
Publication status	Published - May 1989

Keywords

Bismuth
Copper
Phases
Strontium
Superconductivity

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "Partial Bi-Sr-Cu-O subsolidus diagram at 800°C with and without lithium carbonate",

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.",

keywords = "Bismuth, Copper, Phases, Strontium, Superconductivity",

author = "Saggio, {J. A.} and K. Sujata and J. Hahn and Hwu, {S. J.} and Poeppelmeier, {Kenneth R} and Mason, {Thomas O}",

year = "1989",

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T1 - Partial Bi-Sr-Cu-O subsolidus diagram at 800°C with and without lithium carbonate

AU - Saggio, J. A.

AU - Sujata, K.

AU - Hahn, J.

AU - Hwu, S. J.

AU - Poeppelmeier, Kenneth R

AU - Mason, Thomas O

PY - 1989/5

Y1 - 1989/5

N2 - 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.

AB - 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.

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KW - Copper

KW - Phases

KW - Strontium

KW - Superconductivity

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