Patent ID: 6187718
Filing Date: 2001-02-13
Classification: H01B,H01L,Y02E,Y10S

Abstract:
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/.degree. C., said fiber disposed within a sleeve layer of superconducting mixed oxide having a superconducting transition temperature above 77.degree. K., said mixed oxide of wherein A.sub.1 B.sub.2 Cu.sub.3 O.sub.7-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.