Subsolidus phase equilibria of coexisting high-Tc Pb-2223 and 2212 superconductors in the (Bi,Pb)-Sr-Ca-Cu-O system under 705% O2

W. Wong-Ng; L. P. Cook; F. Jiang; W. Greenwood; U. Balachandran; M. Lanagan

doi:10.1557/JMR.1997.0379

Subsolidus phase equilibria of coexisting high-T_c Pb-2223 and 2212 superconductors in the (Bi,Pb)-Sr-Ca-Cu-O system under 705% O₂

W. Wong-Ng, L. P. Cook, F. Jiang, W. Greenwood, U. Balachandran, M. Lanagan

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Abstract

The subsolidus phase relationships of the high-T_c 2223 superconductor in the (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) system have been examined at 810-820 °C. All experiments were carried out at ambient pressure in a 7.5% O₂ (92.5% Ar) atmosphere. Eleven phases were found to exist in equilibrium with the 2223 phase. These 11 phases include CuO and 10 oxide solid solutions. From among these phases, a total of 48 five-phase combinations including the 2223 and 2212 phases were investigated experimentally, and 16 equilibrium assemblages were found which define a multicomponent compositional space corresponding to the 2223 + 2212 solid-state compatibility region. The subsolidus data form a partial basis for future investigation of the Pb-2223 primary phase field.

Original language	English (US)
Pages (from-to)	2855-2865
Number of pages	11
Journal	Journal of Materials Research
Volume	12
Issue number	11
DOIs	https://doi.org/10.1557/JMR.1997.0379
State	Published - Nov 1997

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/JMR.1997.0379

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title = "Subsolidus phase equilibria of coexisting high-Tc Pb-2223 and 2212 superconductors in the (Bi,Pb)-Sr-Ca-Cu-O system under 705% O2",

abstract = "The subsolidus phase relationships of the high-Tc 2223 superconductor in the (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) system have been examined at 810-820 °C. All experiments were carried out at ambient pressure in a 7.5% O2 (92.5% Ar) atmosphere. Eleven phases were found to exist in equilibrium with the 2223 phase. These 11 phases include CuO and 10 oxide solid solutions. From among these phases, a total of 48 five-phase combinations including the 2223 and 2212 phases were investigated experimentally, and 16 equilibrium assemblages were found which define a multicomponent compositional space corresponding to the 2223 + 2212 solid-state compatibility region. The subsolidus data form a partial basis for future investigation of the Pb-2223 primary phase field.",

author = "W. Wong-Ng and Cook, {L. P.} and F. Jiang and W. Greenwood and U. Balachandran and M. Lanagan",

year = "1997",

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AU - Wong-Ng, W.

AU - Cook, L. P.

AU - Jiang, F.

AU - Greenwood, W.

AU - Balachandran, U.

AU - Lanagan, M.

PY - 1997/11

Y1 - 1997/11

N2 - The subsolidus phase relationships of the high-Tc 2223 superconductor in the (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) system have been examined at 810-820 °C. All experiments were carried out at ambient pressure in a 7.5% O2 (92.5% Ar) atmosphere. Eleven phases were found to exist in equilibrium with the 2223 phase. These 11 phases include CuO and 10 oxide solid solutions. From among these phases, a total of 48 five-phase combinations including the 2223 and 2212 phases were investigated experimentally, and 16 equilibrium assemblages were found which define a multicomponent compositional space corresponding to the 2223 + 2212 solid-state compatibility region. The subsolidus data form a partial basis for future investigation of the Pb-2223 primary phase field.

AB - The subsolidus phase relationships of the high-Tc 2223 superconductor in the (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) system have been examined at 810-820 °C. All experiments were carried out at ambient pressure in a 7.5% O2 (92.5% Ar) atmosphere. Eleven phases were found to exist in equilibrium with the 2223 phase. These 11 phases include CuO and 10 oxide solid solutions. From among these phases, a total of 48 five-phase combinations including the 2223 and 2212 phases were investigated experimentally, and 16 equilibrium assemblages were found which define a multicomponent compositional space corresponding to the 2223 + 2212 solid-state compatibility region. The subsolidus data form a partial basis for future investigation of the Pb-2223 primary phase field.

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Subsolidus phase equilibria of coexisting high-T_c Pb-2223 and 2212 superconductors in the (Bi,Pb)-Sr-Ca-Cu-O system under 705% O₂

Abstract

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