Critical current density in Nb 3 Sn superconducting wire

Details Critical current density in Nb 3 Sn superconducting wire Critical current density in Nb 3 Sn superconducting wire

2008-05-06

2008-05-06

Sheehan, John P. (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

Superconductive metal or alloy

C029S599000, C029S825000, C174S125100

Reexamination Certificate

active

07368021

ABSTRACT:
Critical current densities of internal tin wire to the range of 3000 A/mm2at temperature of 4.2 K and in magnetic field 12 T are achieved by controlling the following parameters in a distributed barrier subelement design: wt % Sn in bronze; atomic Nb:Sn; local area ratio; reactable barrier; barrier thickness relative to the filament thickness; additions of a dopant such as Ti or Ta to the Nb3Sn; and the design for restacking and wire reduction to control the maximum filament diameter at the subsequent heat reaction stage.

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Lee and Larbalestier, Microstructure, Microchemistry and the Development of Very High Nb3Sn Layer Critical Current Density, IEEE Trans. Applied Superconductivity, Paper 4MR01 published at ASC '04, pp. 1-4, Jacksonville, FL.

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