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Title:
MAGNESIUM DIBORIDE SUPERCONDUCTORS
Document Type and Number:
WIPO Patent Application WO2003049208
Kind Code:
A3
Abstract:
A method of manufacturing polycrystalline bulk MgB2 with enhanced superconducting properties, by introducing structural defects forming pinning sites for quantised magnetic vortices, so as to prevent them from moving under the action of the Lorentz force. Chemical dopants like Si, Cu, Zn, Al, C, Li, or N or inert or nano-boride forming particles like Y2O3 can be used.

Inventors:
COWEY LISA (GB)
DRISCOLL JUDITH LOUISE (GB)
Application Number:
PCT/GB2002/005527
Publication Date:
April 01, 2004
Filing Date:
December 06, 2002
Export Citation:
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Assignee:
IMP COLLEGE INNOVATIONS LTD (GB)
COWEY LISA (GB)
DRISCOLL JUDITH LOUISE (GB)
International Classes:
H01L39/24; (IPC1-7): H01L39/24
Domestic Patent References:
WO2002072501A22002-09-19
Other References:
ZHAO Y ET AL: "High critical current density of MgB2 bulk superconductor doped with Ti and sintered at ambient pressure", APPLIED PHYSICS LETTERS, vol. 79, no. 8, 20 August 2001 (2001-08-20), pages 1154 - 1156, XP001082276, ISSN: 0003-6951
ZHAO Y ET AL: "Doping effect of Zr and Ti on the critical current density of MgB2 bulk superconductors prepared under ambient pressure", 14TH INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY. ADVANCES IN SUPERCONDUCTIVITY XIV, KOBE, JAPAN, 25-27 SEPTEMBER 2001, vol. 378-381, pt. 1, Physica C, 1 October 2002, pages 122 - 126, XP004382853, ISSN: 0921-4534
CIMBERLE M R ET AL: "Magnetic characterization of sintered MgB2 samples: effect of substitution or "doping" with Li, Al and Si", ARXIV.ORG E-PRINT ARCHIVE, 7 June 2001 (2001-06-07), XP002256041, Retrieved from the Internet [retrieved on 20030929]
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