Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples

V. V. Prisedskii; B. A. Tonkin; Y. G. Proykova; E. M. Roizenblatt; F. C. Walsh; T. J. Oliver; J. R. Smith; E. I. Volkova; B. Hartfree; R. Mortlock

Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples

V. V. Prisedskii^*, B. A. Tonkin, Y. G. Proykova, E. M. Roizenblatt, F. C. Walsh, T. J. Oliver, J. R. Smith, E. I. Volkova, B. Hartfree, R. Mortlock

^*Corresponding author for this work

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

Abstract

The microstructure, preferred orientation, and axial inhomogeneities of composition and critical currents in melt-textured YBCO samples in the shape of bars were studied. The microstructure of the material is dominated by large platelike grains. Most of these grains consist of YBa₂Cu₃O_x (123 phase); large grains of Y₂BaCuO₅ (211 phase) and a 123/211 intergrowth phase are also present. In addition, the material contains small, randomly oriented grains of Y₂BaCuO₅, YBa₂Cu₃O_x, and BaCuO₂. A wide scatter in 211 content and oxygen stoichiometry of 123 along the bar samples is revealed. The variations in phase composition are found to be strongly correlated with those in critical current.

Original language	English
Pages (from-to)	1247-1252
Number of pages	6
Journal	Inorganic Materials
Volume	34
Issue number	12
Publication status	Published - 1 Dec 1998

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Prisedskii, V. V., Tonkin, B. A., Proykova, Y. G., Roizenblatt, E. M., Walsh, F. C., Oliver, T. J., Smith, J. R., Volkova, E. I., Hartfree, B., & Mortlock, R. (1998). Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples. Inorganic Materials, 34(12), 1247-1252. https://inis.iaea.org/search/search.aspx?orig_q=RN:31035669

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title = "Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples",

abstract = "The microstructure, preferred orientation, and axial inhomogeneities of composition and critical currents in melt-textured YBCO samples in the shape of bars were studied. The microstructure of the material is dominated by large platelike grains. Most of these grains consist of YBa2Cu3Ox (123 phase); large grains of Y2BaCuO5 (211 phase) and a 123/211 intergrowth phase are also present. In addition, the material contains small, randomly oriented grains of Y2BaCuO5, YBa2Cu3Ox, and BaCuO2. A wide scatter in 211 content and oxygen stoichiometry of 123 along the bar samples is revealed. The variations in phase composition are found to be strongly correlated with those in critical current.",

author = "Prisedskii, {V. V.} and Tonkin, {B. A.} and Proykova, {Y. G.} and Roizenblatt, {E. M.} and Walsh, {F. C.} and Oliver, {T. J.} and Smith, {J. R.} and Volkova, {E. I.} and B. Hartfree and R. Mortlock",

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T1 - Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples

AU - Prisedskii, V. V.

AU - Tonkin, B. A.

AU - Proykova, Y. G.

AU - Roizenblatt, E. M.

AU - Walsh, F. C.

AU - Oliver, T. J.

AU - Smith, J. R.

AU - Volkova, E. I.

AU - Hartfree, B.

AU - Mortlock, R.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The microstructure, preferred orientation, and axial inhomogeneities of composition and critical currents in melt-textured YBCO samples in the shape of bars were studied. The microstructure of the material is dominated by large platelike grains. Most of these grains consist of YBa2Cu3Ox (123 phase); large grains of Y2BaCuO5 (211 phase) and a 123/211 intergrowth phase are also present. In addition, the material contains small, randomly oriented grains of Y2BaCuO5, YBa2Cu3Ox, and BaCuO2. A wide scatter in 211 content and oxygen stoichiometry of 123 along the bar samples is revealed. The variations in phase composition are found to be strongly correlated with those in critical current.

AB - The microstructure, preferred orientation, and axial inhomogeneities of composition and critical currents in melt-textured YBCO samples in the shape of bars were studied. The microstructure of the material is dominated by large platelike grains. Most of these grains consist of YBa2Cu3Ox (123 phase); large grains of Y2BaCuO5 (211 phase) and a 123/211 intergrowth phase are also present. In addition, the material contains small, randomly oriented grains of Y2BaCuO5, YBa2Cu3Ox, and BaCuO2. A wide scatter in 211 content and oxygen stoichiometry of 123 along the bar samples is revealed. The variations in phase composition are found to be strongly correlated with those in critical current.

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IS - 12

ER -

Inhomogeneities of Composition, Microstructure, and Critical Currents in Elongated Melt-Textured YBCO Samples

Abstract

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