FIELD: electricity.
SUBSTANCE: method includes formation of the first composite blank of single fibre out of large number of rods (more than 19) of niobium and Nb-Ti alloy, at that quantity of titanium in regard to niobium in conversion to all fibre is from 0.5 up to 5 wt %, each composite blank of single fibre specified above is made with copper or copper alloy coating and may contain stannum source; formation of composite blank of superconductor that contains single fibres of niobium and Nb-Ti alloy, which are placed in matrix of copper or copper alloy, stannum source, diffusion barrier and copper coating, multistage drawing and thermal treatment of composite blank until the wire of required cross-section is obtained, thermal treatment of the wire so that superconductive compound Nb3Sn is produced.
EFFECT: increased current carry capability and stability of electrophysical characteristics of each single fibre of the superconductor due to reduced dimensions and increased homogeneity of Nb3Sn crystallites.
2 cl, 2 dwg
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