Patent ID: 6207619
Filing Date: 2001-03-27
Classification: H01L,Y10S

Abstract:
A method for manufacturing a superconductor comprising the following steps:embedding a conductor core in a conductive matrix material to form a structure, the conductor core comprising a bismuth-containing, oxidic superconductor material with a high transition temperature T.sub.c of a 2223 phase;combination shaping and annealing the structure with a plurality of shaping steps and a plurality of annealing steps;final annealing the structure wherein a formation of a high part of the high T.sub.c phase in the conductor core occurs at predetermined temperature conditions exceeding 835.degree. C. in an atmosphere comprising a partial pressure of oxygen; andcooling the structure in said atmosphere in a temperature interval at least between 800.degree. C. and 750.degree. C. while lowering the oxygen partial pressure of the atmosphere while substantially maintaining stability of the 2223 phase.