Patent ID: 8227019
Filing Date: 2012-07-24
Classification: C23C,H01L,Y10S,Y10T

Abstract:
1. A process for producing long lengths of a layered superconductor comprising: coating a buffered metal substrate tape with metalorganic precursors of REBa translating the coated tape through a precursor conversion zone in a process chamber at a rate of at least about 10 meters per hour; introducing oxygen and water vapor through a showerhead into the precursor conversion zone while translating the coated tape; heating the coated tape to a temperature in the range between about 700° C. to about 850° C. within the precursor conversion zone; and reacting the water vapor, oxygen, and the metalorganic precursors of REBa where the pressure in the process chamber is in the range between about 1 Torr to about 760 Torr and where the substrate resides in the precursor conversion zone for a period of time sufficient to convert the precursors to a superconducting coating epitaxial to the buffer layer.