Electricity: conductors and insulators – Conduits – cables or conductors – Superconductors
Patent
1991-01-25
1992-12-01
Picard, Leo P.
Electricity: conductors and insulators
Conduits, cables or conductors
Superconductors
505813, 505884, 505886, 505887, H01B 1200
Patent
active
051681250
ABSTRACT:
A superconductor protected against partial transition includes superconductor strands around at least one non-superconductor central strand or at least one non-superconductor central core electrically insulated from the superconductor strands. At least at both ends of the superconductor, the central strand or said central core is electrically connected to the superconductor strand. The central strand or the central core comprises at least one non-superconductor metal filament whose resistivity at 4.2.degree. K. is less than 10.sup.-9 .OMEGA..m embedded in a metal alloy matrix whose resistivity at that temperature is greater than 10.sup.-8 .OMEGA..m.
REFERENCES:
IEEE Transactions on Magnetics, vol. 25, No. 2, Mar. 1989, pp. 1484-1487, New York, USA; & Applied Superconductivity Conference, San Francisco, USA Aug. 21-25, 1988; H. Tsuji et al.: "Recent progress in the demo poloidal coil program".
Lacaze Alain
Pham Van Doan
Verhaege Thierry
GEC Alsthom SA
Ledynh Bot L.
Picard Leo P.
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