Method of manufacturing oxide superconducting wire

Details Method of manufacturing oxide superconducting wire Method of manufacturing oxide superconducting wire

2006-02-07

2006-02-07

Arbes, Carl J. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S825000, C505S430000, C505S432000, C505S500000, C505S501000

Reexamination Certificate

active

06993823

ABSTRACT:
The inventive method of manufacturing an oxide superconducting wire comprises a step (S1, S2) of preparing a wire formed by covering raw material powder of an oxide superconductor with a metal and a step (S4, S6) of heat-treating the wire in a pressurized atmosphere, and the total pressure of the pressurized atmosphere is at least 1 MPa and less than 50 MPa. Thus, formation of voids between oxide superconducting crystals and blisters of the oxide superconducting wire is suppressed while the partial oxygen pressure can be readily controlled in the heat treatment, whereby the critical current density can be improved.

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