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Subsolidus Phase Equiibria of the 2223 (Bi:Sr:Ca:Cu) Phase at 840 C to 850 C in Air

Published

Author(s)

Winnie Wong-Ng, Lawrence P. Cook, F Jiang, L Swartzendruber, P Sastry

Abstract

The subsolidus phase equilibria involving the Bi-2223(Bi2Sr1.9Ca2.1Cu3O10+x) phase in the Bi-Sr-Ca-Cu-O system (BSCCO) were investigated at 840-850The subsolidus phase equilibria involving the Bi-2223(Bi2Sr1.9Ca2.1Cu3O10+x) phase in the Bi-Sr-Ca-Cu-O system (BSCCO) were investigated at 840-850 C in air. Experiments were performed using a He/liquid N2 quench method and results were characterized by x-ray powder diffraction. These phases are Bi2 Sr2CaCu2Ox, CaO, CuO, (Ca,Sr)2CuO3, (Ca,Sr)CuO2, Bi2(Sr,Ca)4Ox, and phase was derived from the experimental data. This set of four-phase volumes is important for two main reasons: (1) it forms the basis for solid state processing of Bi-2223, including the control of secondary phases, and 2) with increasing temperature, these volumes generate liquid in equilibrium with Bi-2223, useful for melt processing.
Citation
Journal of Solid State Chemistry

Keywords

Bi-2223, high Tc superconductor, phase equilibria, sybsikudys ogase relationships

Citation

Wong-Ng, W. , Cook, L. , Jiang, F. , Swartzendruber, L. and Sastry, P. (2017), Subsolidus Phase Equiibria of the 2223 (Bi:Sr:Ca:Cu) Phase at 840 C to 850 C in Air, Journal of Solid State Chemistry (Accessed May 26, 2024)

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Created February 19, 2017