Bi-rich BiPbSrCaCuO (2-2-2-3) superconducting tapes

D. Y. Kaufman; M. T. Lanagan; T. A. Ballen; S. E. Dorris; J. T. Dawley; R. B. Poeppel

doi:10.1016/0167-577X(93)90045-Y

Bi-rich BiPbSrCaCuO (2-2-2-3) superconducting tapes

D. Y. Kaufman
, M. T. Lanagan
, T. A. Ballen
, S. E. Dorris
, J. T. Dawley
, R. B. Poeppel

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

Abstract

The microstructural and electrical properties of Ag clad Bi_yPb_0.4Sr₂Ca₂Cu₃O_x (y = 1.8, 2.0 and 2.3) powder-in-tube tapes were investigated. The highest J_c values (2000 A/cm² at 77 K and 0 T) were obtained for tapes of powders y = 1.8 and 2.0 following a 150 h thermomechanical routine at 855°C. The presence of alkaline earth second phases was not diminished by the addition of bismuth. The phase equilibria were observed to shift from 2-2-2-3+ Sr_14-xCa_xCu₂₄O₄₈ + Sr_xCa_2-xCuO₃ to 2-2-2-3 + Sr_xCa_2-xCuO₃ + CuO as the Bi content was increased from y = 1.8 to 2.0. (Sr,Ca)₂PbO₄ and 2-2-1-2 were present as by-product phases at temperatures above and below 855°C. Higher Bi content (y = 2.3) caused formation of the 2-2-1-2 phase as the 2-2-2-3 became Bi-saturated.

Original language	English (US)
Pages (from-to)	1-4
Number of pages	4
Journal	Materials Letters
Volume	18
Issue number	1-2
DOIs	https://doi.org/10.1016/0167-577X(93)90045-Y
State	Published - Nov 1993

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/0167-577X(93)90045-Y

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@article{d9e0b4cea46f4bd4b9dd3e9053f87b35,

title = "Bi-rich BiPbSrCaCuO (2-2-2-3) superconducting tapes",

abstract = "The microstructural and electrical properties of Ag clad BiyPb0.4Sr2Ca2Cu3Ox (y = 1.8, 2.0 and 2.3) powder-in-tube tapes were investigated. The highest Jc values (2000 A/cm2 at 77 K and 0 T) were obtained for tapes of powders y = 1.8 and 2.0 following a 150 h thermomechanical routine at 855°C. The presence of alkaline earth second phases was not diminished by the addition of bismuth. The phase equilibria were observed to shift from 2-2-2-3+ Sr14-xCaxCu24O48 + SrxCa2-xCuO3 to 2-2-2-3 + SrxCa2-xCuO3 + CuO as the Bi content was increased from y = 1.8 to 2.0. (Sr,Ca)2PbO4 and 2-2-1-2 were present as by-product phases at temperatures above and below 855°C. Higher Bi content (y = 2.3) caused formation of the 2-2-1-2 phase as the 2-2-2-3 became Bi-saturated.",

author = "Kaufman, \{D. Y.\} and Lanagan, \{M. T.\} and Ballen, \{T. A.\} and Dorris, \{S. E.\} and Dawley, \{J. T.\} and Poeppel, \{R. B.\}",

year = "1993",

month = nov,

doi = "10.1016/0167-577X(93)90045-Y",

language = "English (US)",

volume = "18",

pages = "1--4",

journal = "Materials Letters",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Bi-rich BiPbSrCaCuO (2-2-2-3) superconducting tapes

AU - Kaufman, D. Y.

AU - Lanagan, M. T.

AU - Ballen, T. A.

AU - Dorris, S. E.

AU - Dawley, J. T.

AU - Poeppel, R. B.

PY - 1993/11

Y1 - 1993/11

N2 - The microstructural and electrical properties of Ag clad BiyPb0.4Sr2Ca2Cu3Ox (y = 1.8, 2.0 and 2.3) powder-in-tube tapes were investigated. The highest Jc values (2000 A/cm2 at 77 K and 0 T) were obtained for tapes of powders y = 1.8 and 2.0 following a 150 h thermomechanical routine at 855°C. The presence of alkaline earth second phases was not diminished by the addition of bismuth. The phase equilibria were observed to shift from 2-2-2-3+ Sr14-xCaxCu24O48 + SrxCa2-xCuO3 to 2-2-2-3 + SrxCa2-xCuO3 + CuO as the Bi content was increased from y = 1.8 to 2.0. (Sr,Ca)2PbO4 and 2-2-1-2 were present as by-product phases at temperatures above and below 855°C. Higher Bi content (y = 2.3) caused formation of the 2-2-1-2 phase as the 2-2-2-3 became Bi-saturated.

AB - The microstructural and electrical properties of Ag clad BiyPb0.4Sr2Ca2Cu3Ox (y = 1.8, 2.0 and 2.3) powder-in-tube tapes were investigated. The highest Jc values (2000 A/cm2 at 77 K and 0 T) were obtained for tapes of powders y = 1.8 and 2.0 following a 150 h thermomechanical routine at 855°C. The presence of alkaline earth second phases was not diminished by the addition of bismuth. The phase equilibria were observed to shift from 2-2-2-3+ Sr14-xCaxCu24O48 + SrxCa2-xCuO3 to 2-2-2-3 + SrxCa2-xCuO3 + CuO as the Bi content was increased from y = 1.8 to 2.0. (Sr,Ca)2PbO4 and 2-2-1-2 were present as by-product phases at temperatures above and below 855°C. Higher Bi content (y = 2.3) caused formation of the 2-2-1-2 phase as the 2-2-2-3 became Bi-saturated.

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U2 - 10.1016/0167-577X(93)90045-Y

DO - 10.1016/0167-577X(93)90045-Y

M3 - Article

AN - SCOPUS:0027694901

SN - 0167-577X

VL - 18

SP - 1

EP - 4

JO - Materials Letters

JF - Materials Letters

IS - 1-2

ER -

Bi-rich BiPbSrCaCuO (2-2-2-3) superconducting tapes

Abstract

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