Nb 3 Sn superconducting wire and precursor therefor

Details Nb 3 Sn superconducting wire and precursor therefor Nb 3 Sn superconducting wire and precursor therefor

2011-07-26

2011-07-26

Silverman, Stanley (Department: 1736)

Superconductor technology: apparatus, material, process

Precursor of high temperature superconductor material or...

C505S230000, C505S231000, C505S887000, C428S930000, C428S662000, C174S125100, C029S599000, C148S098000, C420S901000

Reexamination Certificate

active

07985714

ABSTRACT:
A precursor for fabricating a Nb3Sn superconducting wire by an internal Sn process includes one or a plurality of stabilizing copper portions collectively disposed in the center, each stabilizing copper portion being provided with a diffusion barrier layer in the periphery thereof, and a superconducting matrix portion disposed so as to surround the one or the plurality of stabilizing copper portions, the superconducting matrix portion including a Nb or Nb-based alloy core and a Sn or Sn-based alloy core embedded in a Cu or Cu-based alloy matrix.

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Rodrigues, C.A. et al., “Development, Heat Treatment Optimization and Microstructural Characterization of Nb3Sn Superconductor Wire”, IEEE Transactions on Applied Superconductivity, vol. 13, No. 2, Jun. 2003, pp. 3426-3429.
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Extended European Search Report for 07018314.0-222, dated Feb. 12, 2008.

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