Multifilamentary Nb sub(3)Sn superconductors on the base of high-tin alloyed bronzes for high-field magnets

Multifilamentary Nb sub(3)Sn superconductors have been fabricated due to the worked out technology of deformed bronze with increased content of tin (16...18 wt%) production. Studies have been made of the effects of bronze composition and thermal treatment conditions on the overall critical current density of multifilamentary Nb sub(3)Sn superconductors. It is shown, that the use of the bronze with increased content of tin as well as bronze alloying with titanium improves the superconducting properties of composites, especially in high magnetic fields.