Superconducting wire, superconducting conductor, and superconducting cable

Abstract

The invention provides a superconducting wire, a superconducting conductor, and a superconducting cable, which are machined with low alternating-current loss and avoid performance degradation caused by the inhibitor, which is inevitably included in the manufacture process. The superconducting wire has an intermediate layer, a superconducting thin film, a stabilizing film formed by insulating materials or materials with high resistance in order and has a plurality of cuts avoiding the performance degradation caused by the inhibitor, parallel to each other, formed along the direction of the length of the superconducting wire, the superconducting wire being bendable at the cuts in a width direction.

Description

technical field [0001] The present invention relates to a superconducting wire, a superconducting conductor and a superconducting cable, in particular to a processed superconducting cable with low AC loss, which can avoid performance degradation due to unavoidable obstruction factors during manufacture. Wire rods, superconducting conductors and superconducting cables. Background technique [0002] Generally, Bi (bismuth)-based silver sheath superconducting wires and RE-based thin-film superconducting wires are known as wire materials for high-temperature superconducting cables. The Bi-based silver-coated superconducting wire has the problem that the critical current density decreases sharply after an external magnetic field is applied. In Japanese Unexamined Patent Publication No. 9-190727, it is described that in a superconducting cable using a Bi-based silver-coated superconducting wire, a plurality of strips of Bi with the same cross-sectional size are placed on the oute...

AI Technical Summary

Problems solved by technology

[0006] In addition, since the current transport characteristics of RE-based thin film superconducting wires are significantly affected by current interference factors such as weak bonds in the crystal interface or crystal defects, it can be seen that the current path (pass) is non-uniform and permeable. electric current

In particular, since there is an obstacle in the vertical direction to the flow direction of the current, there is a problem of AC loss due to the generation of local voltage

[0007] Here, in order to improve the superconducting characteristics by one layer, it is necessary to avoid performance degradation due to unavoidable obstacles involved in the conventional manufacturing method of thin film superconducting wires.

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