Phase diagram of the Bi[sub 2]O[sub 3]-SrO-CaO quasiternary system

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)

DOI:https://doi.org/10.1007/BF02668212· OSTI ID:7368928

Shimpo, R; Nakamura, Y ^[1]

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1. Univ. of Tokyo (Japan)

Numerous reports have been published on the superconductivity, structure, and physical properties of the Bi-Sr-Ca-Cu-O system, including the ceramic superconductors of Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub y] and Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub y]. On the phase diagrams of the system, numbers of studies have so far been presented, but there exist several regions in the proposed phase diagram of the Bi[sub 2]O[sub 3]-SrO-CaO quasiternary system, which have been presented by several investigators, are different from each other because the ternary system includes a number of solid solution phases of which the phase equilibrium relations are complicated. In this study, isothermal sections of the phase diagram for the Bi[sub 2]O[sub 3]-SrO-CaO ternary system at 973 and 1,023 K have been investigated. Experiments were conducted in air, because this system does not include copper oxides and, therefore, it is considered that the oxygen contents in the interceramic compounds in this system are substantially not affected by the oxygen potential.

• OSTI ID: 7368928
• Journal Information: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States), Journal Name: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States) Vol. 24A:6; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
AIR
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
DATA
DIAGRAMS
DIFFRACTION
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE STUDIES
SAMPLE PREPARATION
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
X-RAY DIFFRACTION