Electricity: conductors and insulators – Conduits – cables or conductors – Superconductors
Patent
1992-03-09
1993-02-02
Picard, Leo P.
Electricity: conductors and insulators
Conduits, cables or conductors
Superconductors
174 154, 505 1, 505704, 505884, 505885, 505886, 505887, H01B 1200
Patent
active
051839709
ABSTRACT:
A superconductive transmission line is formed of mixed metallic oxide ceramic material, particularly Y.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-x drawn epitaxially upon a substrate. The superconductive material has basal crystallographic planes in alignment with copper oxide of the ceramic material. The planes are parallel to the substrate. The transmission line is constructed of a plurality of electrically conductive elements, each of which is formed of the superconductive material. The conductive elements are arranged with the crystalline planes parallel to an axis of the transmission line, along which axis power is to flow. Thereby, magnetic fields induced by currents flowing in the conductive elements intersect the conductive elements perpendicularly to the basal crystallographic planes to maximize the current which can flow while retaining linearity between magnetization and applied magnetic field. Thereby, alternating current can be transmitted by the transmission line without the introduction of hysteresis losses which would develop heat and quench the superconducting characteristic of the transmission line.
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Gallagher William J.
Worthington Thomas K.
International Business Machines Corp.
Ledynh Bot L.
Picard Leo P.
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