Superconducting properties of <i>i</i> <i>n</i> <i>s</i> <i>i</i> <i>t</i> <i>u</i> prepared Nb-Cu-Sn alloys

Abstract

Alloys of Cu–20 wt% Nb have been prepared by a chill casting technique. After drawing to fine wire, Nb3Sn was formed by plating and diffusion of Sn. The critical-current properties and the resistance to degradation of Jc upon mechanical deformation both compare favorably to commercial Nb3Sn tape.