Kabushiki Kaisha Toshiba

Misao Koizumi

Satoru Murase

Yutaka Yamada

Noburu Fukushima

Hisashi Yoshino

Hiromi Niu

Shigeo Nakayama

A starting material which is converted to a continuous body of an oxide superconductor by a heat treatment is filled in a tubular Ag sheath member. The diameter of the filled member is reduced by extrusion to form a wire. The wire is subjected to a heat treatment so that the starting material inside the sheath member is converted to a continuous body of an oxide superconductor. A superconducting wire constituted by the sheath member and the oxide superconductor filled inside the sheath member is obtained. A superconducting coil can be obtained by winding the superconducting wire.

Superconducting wire and method of manufacturing the same

A superconductor for a pulsed magnet has a wire assembly including a plurality of superconducting wires individually bonded with a solder. The solder consists of an Sn-Pb alloy containing indium and/or bismuth. When this solder is used, a coupling current induced between the superconducting wires can be reduced to an acceptable value.

Soldered superconductive coils for a pulse magnet

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Kawasaki, Japan

Misao Koizumi