Title:
OXIDE SUPERCONDUCTING BULK MAGNET
Document Type and Number:
WIPO Patent Application WO/2017/057634
Kind Code:
A1
Abstract:
Provided is an oxide superconducting bulk magnet with which it is possible to obtain a satisfactory total magnetic flux by making it possible to achieve high-magnetic-field magnetization by preventing damage to a superconducting bulk body due to electromagnetic stress and quenches. The present invention is an oxide superconducting bulk magnet that is provided with: an oxide superconducting bulk body in which RE2BaCuO5 is dispersed in monocrystalline RE1Ba2Cu3Oy; and an outer-circumferential reinforcing ring that is fitted to the outer circumference of the oxide superconducting bulk body. The outer-circumferential reinforcing ring is formed from a plurality of metal rings that have a multi-ring structure in the radial direction, in which at least one of the plurality of metal rings has a thermal conductivity of 20 W/(m･K) or greater at 20 to 70 K, and at least one of the plurality of metal rings has a strength that is greater than that of the metal ring having the thermal conductivity of 20 W/(m･K) or greater.
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Inventors:
MORITA MITSURU (JP)
Application Number:
PCT/JP2016/078924
Publication Date:
April 06, 2017
Filing Date:
September 29, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H01F6/06; C01G1/00; C01G3/00; H01B12/00
Domestic Patent References:
| WO2014189043A1 | 2014-11-27 |
Foreign References:
| JPH09255333A | 1997-09-30 | |||
| JP2014146760A | 2014-08-14 | |||
| JP2003173718A | 2003-06-20 | |||
| JP2014165382A | 2014-09-08 |
Other References:
See also references of EP 3358581A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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