Glass microstructure and initial crystallization of Pb0.32Bi1.68Sr1.75Ca2Cu3Ox

A. Aruchamy; S. J. Kim; D. P. Birnie; D. R. Uhlmann

doi:10.1016/0022-3093(93)90284-5

Glass microstructure and initial crystallization of Pb_0.32Bi_1.68Sr_1.75Ca₂Cu₃O_x

A. Aruchamy, S. J. Kim, D. P. Birnie, D. R. Uhlmann

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Abstract

Microstructure and phase development of as-quenched and annealed samples of the glass of composition Pb_0.32Bi_1.68Sr_1.75Ca₂Cu₃O_x have been studied. Evidence for liquid-liquid phase separation during quenching was found The microstructure of this glass during the early stage of crystallization is similar to that found for Bi₂Sr₂CaCu₂O_x (2212) glass. The first phase that crystallizes on annealing at low temperatures appears to be Cu₂O. In further heat treatments the sequential crystallization of the R-phase of (Pb_yBi_2-y)Sr₂CuO_x ('2201') composition and the Pb_yBi_2-ySr₂CaCu₂O_x ('2212') phase was found, in agreement with other studies. Phase separation determines the initial crystal phase and the development of the superconducting phases. Phase separation observed in this glass points to the possibility that immiscibility may be a common feature of a wide range of Bi(or PbBi)SrCaCuO compositions.

Original language	English (US)
Pages (from-to)	60-67
Number of pages	8
Journal	Journal of Non-Crystalline Solids
Volume	160
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-3093(93)90284-5
State	Published - Jul 2 1993

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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title = "Glass microstructure and initial crystallization of Pb0.32Bi1.68Sr1.75Ca2Cu3Ox",

abstract = "Microstructure and phase development of as-quenched and annealed samples of the glass of composition Pb0.32Bi1.68Sr1.75Ca2Cu3Ox have been studied. Evidence for liquid-liquid phase separation during quenching was found The microstructure of this glass during the early stage of crystallization is similar to that found for Bi2Sr2CaCu2Ox (2212) glass. The first phase that crystallizes on annealing at low temperatures appears to be Cu2O. In further heat treatments the sequential crystallization of the R-phase of (PbyBi2-y)Sr2CuOx ('2201') composition and the PbyBi2-ySr2CaCu2Ox ('2212') phase was found, in agreement with other studies. Phase separation determines the initial crystal phase and the development of the superconducting phases. Phase separation observed in this glass points to the possibility that immiscibility may be a common feature of a wide range of Bi(or PbBi)SrCaCuO compositions.",

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T1 - Glass microstructure and initial crystallization of Pb0.32Bi1.68Sr1.75Ca2Cu3Ox

AU - Aruchamy, A.

AU - Kim, S. J.

AU - Birnie, D. P.

AU - Uhlmann, D. R.

PY - 1993/7/2

Y1 - 1993/7/2

N2 - Microstructure and phase development of as-quenched and annealed samples of the glass of composition Pb0.32Bi1.68Sr1.75Ca2Cu3Ox have been studied. Evidence for liquid-liquid phase separation during quenching was found The microstructure of this glass during the early stage of crystallization is similar to that found for Bi2Sr2CaCu2Ox (2212) glass. The first phase that crystallizes on annealing at low temperatures appears to be Cu2O. In further heat treatments the sequential crystallization of the R-phase of (PbyBi2-y)Sr2CuOx ('2201') composition and the PbyBi2-ySr2CaCu2Ox ('2212') phase was found, in agreement with other studies. Phase separation determines the initial crystal phase and the development of the superconducting phases. Phase separation observed in this glass points to the possibility that immiscibility may be a common feature of a wide range of Bi(or PbBi)SrCaCuO compositions.

AB - Microstructure and phase development of as-quenched and annealed samples of the glass of composition Pb0.32Bi1.68Sr1.75Ca2Cu3Ox have been studied. Evidence for liquid-liquid phase separation during quenching was found The microstructure of this glass during the early stage of crystallization is similar to that found for Bi2Sr2CaCu2Ox (2212) glass. The first phase that crystallizes on annealing at low temperatures appears to be Cu2O. In further heat treatments the sequential crystallization of the R-phase of (PbyBi2-y)Sr2CuOx ('2201') composition and the PbyBi2-ySr2CaCu2Ox ('2212') phase was found, in agreement with other studies. Phase separation determines the initial crystal phase and the development of the superconducting phases. Phase separation observed in this glass points to the possibility that immiscibility may be a common feature of a wide range of Bi(or PbBi)SrCaCuO compositions.

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JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

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ER -

Glass microstructure and initial crystallization of Pb_0.32Bi_1.68Sr_1.75Ca₂Cu₃O_x

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