Fabrication and characterization of (Bi,Pb)-Sr-Ca-Cu-O (2223) bars

Densification was observed when bulk ceramic superconductors with a composition of Bi 1.8 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10؉␦ 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.

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Reactive Sintering and Retrograde Densification of Bulk Bismuth‐Based Superconductors

Thayer

Schmidt

Dorris

et al. 2000

Journal of the American Ceramic Society

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Effect of synthesis conditions on the phase composition and critical current density of Bi1.6Pb0.4Sr2−x KxCa2Cu3F0.8Oy

et al. 2000

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Preparation of Bi-2223 Phase at Partial-Melting State

Yamada¹,

Harada²,

Alamgir³

et al. 2002

IEEJ Trans. FM

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Fabrication and characterization of (Bi,Pb)-Sr-Ca-Cu-O (2223) bars

Cited by 3 publications

References 11 publications

Reactive Sintering and Retrograde Densification of Bulk Bismuth‐Based Superconductors

Reactive Sintering and Retrograde Densification of Bulk Bismuth‐Based Superconductors

Effect of synthesis conditions on the phase composition and critical current density of Bi1.6Pb0.4Sr2−x KxCa2Cu3F0.8Oy

Preparation of Bi-2223 Phase at Partial-Melting State

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