Carbon composite superconductors
AssigneeBP Amoco Corporation
InventorDavid A. Schulz
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Abstract
Superconducting composites comprising a high thermal conductivity carbon substrate and a layer of ceramic-type superconductor. Particularly attractive for use as a superconducting flexible conductor are composites comprising a high thermal conductivity, low resistivity carbon fiber disposed within a non-adherent sleeve layer formed of the superconducting ceramic material.
Claims5
In a superconducting composite comprising a graphitic, pitch-based carbon fiber having a tensile strength greater than about 350 kpsi tensile strength and a thermal conductivity of at least 900 watts/m/° C., said fiber disposed within a sleeve layer of superconducting mixed oxide having a superconducting transition temperature above 77° K., said mixed oxide of wherein A1 B2 Cu3 O7-x′ wherein A is one or more elements selected from the group consisting of yttrium, lanthanum and the lanthanides, B is one or more Group IIA elements, and x is a number between 0 and 1, the improvement wherein said sleeve layer of superconducting mixed oxide is a non-adherent sleeve surrounding said fiber.
Dependencies are inferred from the claim text.