Patent ID: 6051534
Filing Date: 2000-04-18
Classification: H01L

Abstract:
A process for making a superconducting (Pb,Bi)SrCaCuO part having a shape, comprising the steps of:pressing (Pb,Bi)SrCaCuO powder into a green body having the shape of said part;sintering said green body for a time that is at least long enough for said part to fuse so that there is superconducting electrical contact between grains of (Pb,Bi)SrCaCuO in said part, but less than a time that will permit either significant void formation or significant part shape distortion to occur, wherein said sintering step comprises sintering said green body for between about 4 hours and about 10 hours, and wherein said (Pb,Bi)SrCaCuO powder comprises a phase of superconducting (Pb,Bi)SrCaCuO selected from the group consisting of 2212 (Pb,Bi)SrCaCuO, 2223 (Pb,Bi)SrCaCuO, and mixtures thereof.