An in depth characterization of (NbTa)3Sn filamentary superconductor

Further to our programme of investigations of new, technical superconductive materials which are of interest to designers of practical devices, we present the results of a detailed study of the critical parameters of the ternary addition A.15 material (Nb7.Sw/oTa)3Sn manufactured by Vacuumschmelze GMBH, Hanau F.R.G. The basis of the results we report is a comprehensive Jc(B, T) characterization within the range, O