Nb3Sn SUPERCONDUCTOR PRECURSOR WIRE, Nb FILAMENT SINGLE WIRE, Nb3Sn SUPERCONDUCTOR WIRE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a NbSn superconductor precursor wire by an internal tin method compositing a reinforcement member, good in workability and excellent in Jc property, and to provide a Nb filament single wire, a NbSn superconductor wire and a manufacturing method thereof.SOLUTION: A NbSn superconductor precursor wire has a plurality of Nb filament single wires containing Nb or a Nb alloy and a plurality of Sn single wires containing Sn or a Sn alloy, and the Nb filament single wire has a reinforcement member consisting of at least one kind of metal selected from a group consisting of Ta, a Ta alloy, W, a W alloy, Mo, a Mo alloy, V, a V alloy, Zr, a Zr alloy, Hf and a Hf alloy, or the Nb alloy containing at least one kind of metal selected from a group consisting of Ta, W, Mo, V, Zr and Hf at a center.