Patent ID: 7275301
Filing Date: 2007-10-02
Classification: H01F,H01L,Y10T

Abstract:
1. A method of manufacturing a compact single clad superconducting wire having a markedly reduced cross-sectional area, said method of manufacture comprising the steps of: providing a workpiece fashioned as a nearly complete single superconducting wire which has been drawn to nearly its prechosen final dimensions, said nearly complete single superconducting wire workpiece comprising (a) a one discrete metallic matrix composed of pure metal or metal alloy, and (b) multiple filaments of superconducting matter individually contained within and encompassed by said metallic matrix; covering said nearly complete single superconducting wire workpiece with at least one cladding of material to form a clad single surerconducting wire workpiece, wherein said cladding material (i) completely surrounds said nearly complete superconducting wire workpiece, and (ii) is a high-strength reinforcing substance of high resistance and low thermal conductivity having a mechanical yield strength and an elastic modulus greater than that of pure copper; and then drawing said clad single superconducting wire workpiece into its prechosen final dimensions to produce a compact clad superconducting wire having a markedly reduced cross-sectional area without forming voids between said cladding material and said single superconducting wire workpiece.