Mechanical properties of a niobium-tin superconductor reinforced by tantalum cores

ArticleinIEEE Transactions on Applied Superconductivity 11(1):3635 - 3638 · April 2001with7 Reads
Impact Factor: 1.24 · DOI: 10.1109/77.919852 · Source: IEEE Xplore


    We have been developing fiber-reinforced type of niobium-tin
    superconductor for large scale high field magnets. In this conductor,
    each niobium-tin filament has a tantalum core. Tantalum is selected as
    material for the core since it has good ductility with mechanical
    strength and hence a conventional drawing method can be applied to
    fabricate a conductor. Stress-strain characteristics and the
    irreversible strain limits of the conductor with different
    heat-treatment conditions are measured. Combining these results,
    discussions about the mechanical properties of the conductor are