Low alternating-current loss oxide superconductor and fabricating method thereof

US8880135B2 · kind B2 · utility

Assignees

• RAILWAY TECHNICAL RESEARCH INSTITUTE · JP
• International Superconductivity Technology Center, the Juridical Foundation · JP
• KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION · JP

Inventors

• Kenji Suzuki · Musashino, JP
• Saburo Hoshi · Tokyo, JP
• Junko Matsuda · Tokyo, JP
• Teruo Izumi · Tokyo, JP
• Yuh Shiohara · Tokyo, JP
• Masataka Iwakuma · Itoshima, JP

Key dates

• Filing date: Nov 16, 2006
• Grant date: Nov 4, 2014
• Expiry date: Apr 25, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S505/887

Abstract

The present invention is configured such that, in a low AC loss oxide superconductor constituted by providing an oxide superconducting layer 6 on a substrate 1, said oxide superconducting layer 6 is separated into a plurality of filament conductors 2 in parallel to the lengthwise direction of said substrate 1 by dividing grooves 3 plurally formed in the widthwise direction of said substrate, and a high-resistance oxide 8 is formed in said dividing grooves 3. Because of the invention, it is possible to increase the insulation properties of individually divided mated filament conductors, and to obtain an oxide superconductor that has low AC loss.