Fabrication, current density and strain dependence of sintered, Ag-sheated Bi-Sr-Ca-Cu-O (2212) single filament and multifilamentary tape superconductors

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5878236

Schwartz, J ^[1]; Sekine, H; Asano, T; Kuroda, T; Inoue, K; Maeda, H ^[2]

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1. Illinois Univ., Urbana, IL (United States). Dept. of Nuclear Engineering
2. National Research Inst. for Metals, Tsukuba, Ibaraki (Japan). Tsukuba Lab.

This paper reports on Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} (2212) superconductors fabricated into silver (Ag)-sheathed single filament, multifilament and Wire-in-Tube (WIT) tapes. Calcining, annealing and sintering conditions have been studied to improve the critical current density J{sub c}(B,4.2 K) at high magnetic field (B). The optimization is discussed and resulting properties are related to the microstructure of the superconductor. Superconductor J{sub c} {approximately} 1 {minus} 5 {times} 10{sup 4} A/cm{sup 2} has been obtained infields {gt}20 Teslas at 4.2 K in both single and multifilamentary tapes. Furthermore, the dependence of J{sub c} upon mechanical strain ({epsilon}) has been investigated.

• OSTI ID: 5878236
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
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& Refractories-- Structure & Phase Studies
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Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
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CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
FABRICATION
FILAMENTS
GOLD
MAGNETIC FIELDS
METALS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
SINTERING
STRAINS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS