Mitsubishi Denki Kabushiki Kaisha

Masayoshi Wake

Takayuki Nagai

Yoshio Kubo

Takanori Sone

Osamu Taguchi

Kunihiko Egawa

Mitsuyuki Imaizumi

Kiyoshi Hiramoto

A method of producing NbSn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.

Method of producing superconducting wire

A superconductor comprises two superconducting wires butt-jointed, a superconducting doubling wire electrically and mechanically connecting the superconducting wires, and a stabilizer attached to the superconductors and the doubling wire to extend therealong, the superconductors, the doubling wire and the stabilizer together forming a superconductor of a constant cross-sectional area. A manufacturing process is also disclosed.

Superconductor

Growing community of inventors

Ibaraki, Japan

Masayoshi Wake