Title:
OXIDE SUPERCONDUCTING WIRE
Document Type and Number:
WIPO Patent Application WO/2017/060969
Kind Code:
A1
Abstract:
This oxide superconducting wire (1) is provided with a substrate (10) and an oxide superconducting layer (30) formed on the substrate (10). The oxide superconducting layer (30) is formed from an RE-123 superconductor. The oxide superconducting layer (30) includes a first primary surface (30a) facing the substrate (10) and a second primary surface (30b) positioned opposite the first primary surface (30a). If the composition ratio of RE and Ba (RE:Ba) in the oxide superconducting layer (30) is a:2, it holds that a is 1.5-2. Further, in the oxide superconducting layer (30), the Cu atomic concentration on the side of the second primary surface (30b) is higher than the Cu atomic concentration on the side of the first primary surface (30a).
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Inventors:
OHKI KOTARO (JP)
NAGAISHI TATSUOKI (JP)
NAGAISHI TATSUOKI (JP)
Application Number:
PCT/JP2015/078292
Publication Date:
April 13, 2017
Filing Date:
October 06, 2015
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01B12/06
Other References:
MASARU NAKAMURA ET AL.: "Pinning center for Nd123 superconductor system", OYO BUTSURI, vol. 66, no. 4, April 1997 (1997-04-01), pages 369 - 372, XP055374652
MASATERU YOSHIZUMI ET AL.: "Solid State Phase Transformation of Nd1+xBa2-xCu3O6+? During Annealing Processing", JOURNAL OF THE JAPAN INSTITUTE OF METALS, vol. 65, no. 3, 20 March 2001 (2001-03-20), pages 139 - 142, XP055374656
VARGAS J.L. ET AL.: "Flux pinning by ordered oxygen-deficient phases in nearly stoichiometric YBa2Cu3O7-delta single crystals", APPL. PHYS. LETT., vol. 60, no. 14, pages 1741 - 1743, XP055374658
MASATERU YOSHIZUMI ET AL.: "Solid State Phase Transformation of Nd1+xBa2-xCu3O6+? During Annealing Processing", JOURNAL OF THE JAPAN INSTITUTE OF METALS, vol. 65, no. 3, 20 March 2001 (2001-03-20), pages 139 - 142, XP055374656
VARGAS J.L. ET AL.: "Flux pinning by ordered oxygen-deficient phases in nearly stoichiometric YBa2Cu3O7-delta single crystals", APPL. PHYS. LETT., vol. 60, no. 14, pages 1741 - 1743, XP055374658
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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