Patent ID: 6932874
Filing Date: 2005-08-23
Classification: H01L,Y10T

Abstract:
1. A method for producing a superconductor having a high copper to superconductor composition (Cu/SC) ratio by cross-sectional area, comprising in sequence the steps of: (a) preparing by a sequence of operations which include one or more drawing steps, an assembly formed of one or more fine filaments of a NbTi superconductor composition or of Nb as a precursor component for a Nb (b) without subjecting said assembly to a prior heating step to diffuse an alloying element into said filaments, electroplating the assembly from step (a) with copper to increase the Cu/filament ratio by cross-sectional area in the resulting product, and thereby increase the said Cu/SC ratio to improve the stability of the final superconductor; and (c) subsequent to step (b) heat diffusing said alloying element into said filaments in the instance where said filaments comprise Nb