METHOD OF OBTAINING OF NbSn SUPERCONDUCTOR USING INTERNAL TIN SOURCE METHOD Russian patent published in 2015 - IPC H01B12/00 

FIELD: electricity.

SUBSTANCE: work piece of the sub-element Cu/Nb is formed which contains the bars from niobium or alloy on its base distributed in an array from copper or alloy on its base and the central core from tin or from tin-based alloy, the work piece is deformed up to the intermediate size, is cut in parts from which the lengthy composite work piece is formed which comprises an external cylindrical layer from high-pure copper and the internal cylindrical diffusive barrier, the composite work piece is deformed by cold drawing up to a final diameter and the reactionary heat treatment is performed for formation of the superconducting compound Nb₃Sn, and the work piece of the sub-element Cu/Nb is formed in the induction vacuum furnace by filling with fusion of copper or copper-based alloy, bars of niobium or niobium-based alloy which are placed in a mould designed as a spatial frame.

EFFECT: avoidance of labour-intensive processes of chemical etching, pumping out and sealing of compound preparations, obtaining of superconductor with pre-set distribution of fibres in the cross section of superconductor.

8 cl, 3 dwg