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
·
· Applied Physics Letters; (United States)
- IGC Advanced Superconductors, Waterbury, Connecticut 06704 (United States)
- 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), Journal Name: Applied Physics Letters; (United States) Vol. 65:21; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
ELECTRIC CURRENTS
FABRICATION
FILAMENTS
HEAT TREATMENTS
HIGH-TC SUPERCONDUCTORS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TEXTURE
TRANSITION ELEMENT COMPOUNDS
WIRES
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
ELECTRIC CURRENTS
FABRICATION
FILAMENTS
HEAT TREATMENTS
HIGH-TC SUPERCONDUCTORS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TEXTURE
TRANSITION ELEMENT COMPOUNDS
WIRES