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

Electrotech. Lab., Tsukuba
IEEE Transactions on Applied Superconductivity (Impact Factor: 1.2). 04/2001; DOI: 10.1109/77.919852
Source: IEEE Xplore

ABSTRACT 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

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