Reactive sintering and retrograde densification of bulk bismuth-based superconductors

Ryan L. Thayer; Sarah R. Schmidt; Stephen E. Dorris; Jeffrey W. Bullard; Michael T. Lanagan

doi:10.1111/j.1151-2916.2000.tb01562.x

Reactive sintering and retrograde densification of bulk bismuth-based superconductors

Ryan L. Thayer
, Sarah R. Schmidt
, Stephen E. Dorris
, Jeffrey W. Bullard
, Michael T. Lanagan

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

6 Scopus citations

Abstract

Densification was observed when bulk ceramic superconductors with a composition of Bi_1.8Pb_0.4Sr₂Ca₂Cu₃O_10+δ were sintered for short times (<4 h) near the incongruent melting temperature. The initial shrinkage of the powder compacts was correlated with the existence of a transient liquid phase. Retrograde densification, which is a decrease in density, occurred for longer sintering times and was attributed to changes in pore structure. The results provide direction for future processing of bulk bismuth-based superconductors and powder-in-tube tapes for the fabrication of long-length wire.

Original language	English (US)
Pages (from-to)	2365-2368
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	83
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.2000.tb01562.x
State	Published - 2000

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.2000.tb01562.x

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title = "Reactive sintering and retrograde densification of bulk bismuth-based superconductors",

abstract = "Densification was observed when bulk ceramic superconductors with a composition of Bi1.8Pb0.4Sr2Ca2Cu3O10+δ were sintered for short times (<4 h) near the incongruent melting temperature. The initial shrinkage of the powder compacts was correlated with the existence of a transient liquid phase. Retrograde densification, which is a decrease in density, occurred for longer sintering times and was attributed to changes in pore structure. The results provide direction for future processing of bulk bismuth-based superconductors and powder-in-tube tapes for the fabrication of long-length wire.",

author = "Thayer, \{Ryan L.\} and Schmidt, \{Sarah R.\} and Dorris, \{Stephen E.\} and Bullard, \{Jeffrey W.\} and Lanagan, \{Michael T.\}",

year = "2000",

doi = "10.1111/j.1151-2916.2000.tb01562.x",

language = "English (US)",

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pages = "2365--2368",

journal = "Journal of the American Ceramic Society",

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TY - JOUR

T1 - Reactive sintering and retrograde densification of bulk bismuth-based superconductors

AU - Thayer, Ryan L.

AU - Schmidt, Sarah R.

AU - Dorris, Stephen E.

AU - Bullard, Jeffrey W.

AU - Lanagan, Michael T.

PY - 2000

Y1 - 2000

N2 - Densification was observed when bulk ceramic superconductors with a composition of Bi1.8Pb0.4Sr2Ca2Cu3O10+δ were sintered for short times (<4 h) near the incongruent melting temperature. The initial shrinkage of the powder compacts was correlated with the existence of a transient liquid phase. Retrograde densification, which is a decrease in density, occurred for longer sintering times and was attributed to changes in pore structure. The results provide direction for future processing of bulk bismuth-based superconductors and powder-in-tube tapes for the fabrication of long-length wire.

AB - Densification was observed when bulk ceramic superconductors with a composition of Bi1.8Pb0.4Sr2Ca2Cu3O10+δ were sintered for short times (<4 h) near the incongruent melting temperature. The initial shrinkage of the powder compacts was correlated with the existence of a transient liquid phase. Retrograde densification, which is a decrease in density, occurred for longer sintering times and was attributed to changes in pore structure. The results provide direction for future processing of bulk bismuth-based superconductors and powder-in-tube tapes for the fabrication of long-length wire.

UR - https://www.scopus.com/pages/publications/0034299291

UR - https://www.scopus.com/pages/publications/0034299291#tab=citedBy

U2 - 10.1111/j.1151-2916.2000.tb01562.x

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M3 - Article

AN - SCOPUS:0034299291

SN - 0002-7820

VL - 83

SP - 2365

EP - 2368

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 10

ER -

Reactive sintering and retrograde densification of bulk bismuth-based superconductors

Abstract

All Science Journal Classification (ASJC) codes

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