Magnetization and critical current density of ultra-fine multifilamentary superconducting wires

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6047666

Estop, P; Tavergnier, J P; Agnoux, C; Fevrier, A ^[1]; Lacaze, A ^[2]

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1. Lab. de Marcoussis, Centre de Recherches de la C.G.E., route de Nozay, 91460 Marcoussis (FR)
2. GEC Alsthom-Dem, 3 avenue des Trois Chenes, 90018 Belfort (FR)

Multifilamentary superconducting wires with a greatly reduced level of losses have been produced with lengths of several tens of kilometers. In spite of the reduction of the filament diameter, proximity effects are avoided, and the authors make the best possible use of the reversible motion of the flux lines, so that the hysteretic losses are reduced. The concepts lead the authors to realize conductors comprising filaments of Nb-Ti, with a 0.1 to 0.2 {mu}m diameter embedded in a highly resistive CuNi matrix. In order to characterize the possible applications to industrial power systems, the authors should investigate in a quite precise way, the losses in submicronic filaments. In this paper, the authors determine the correct value of the critical current density with critical current measurements and magnetization curves on such wires.

• OSTI ID: 6047666
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
COPPER
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
FILAMENTS
HYSTERESIS
MAGNETIZATION
MATRICES
METALS
NICKEL
NIOBIUM ALLOYS
POWER SYSTEMS
PROXIMITY EFFECT
SUPERCONDUCTING WIRES
TITANIUM ALLOYS
TRANSITION ELEMENTS
WIRES