Dependence of critical current density on filament diameter in round multifilament Ag-sheathed Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub [ital x]] wires processed in O[sub 2]

Journal Article · Mon Nov 21 00:00:00 EST 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.112550· OSTI ID:6802991

Motowidlo, L R; Galinski, G; Ozeryansky, G ^[1]; Zhang, W; Hellstrom, E E ^[2]

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1. IGC Advanced Superconductors, Waterbury, Connecticut 06704 (United States)
2. University of Wisconsin, Madison, Wisconsin 53706 (United States)

Ag-sheathed Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub [ital x]] round wires having 37 and 259 filaments, with filament diameters ranging from 11 to 100 [mu]m, were fabricated by the oxide-powder-in-tube method. They were heat treated using step-solidification melt processing in air and pure O[sub 2]. The transport critical current density was highest in wires processed in pure O[sub 2]. It increased with decreasing filament diameter and was highest [165 000 A/cm[sup 2] (4.2 K, O T)] in wires with 11 [mu]m filaments processed in O[sub 2].

• DOE Contract Number: FG02-92ER81461
• OSTI ID: 6802991
• Journal Information: Applied Physics Letters; (United States), Vol. 65:21; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
BISMUTH OXIDES
CRITICAL CURRENT
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
STRONTIUM OXIDES
SUPERCONDUCTING WIRES
FABRICATION
FILAMENTS
HEAT TREATMENTS
MICROSTRUCTURE
TEXTURE
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CURRENTS
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
WIRES
665412* - Superconducting Devices- (1992-)
360201 - Ceramics
Cermets
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360207 - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)