Manufacturing method of Bi-xPbySrCa.CuOz high-temperature superconductor

摘要

SUMMARY OF THE INVENTION [₂-xPbySr₂Ca_2.2Cu₃The present invention relates to a method for producing a high-temperature superconductor, and more particularly, to a method for manufacturing a high-temperature superconductor, comprising the steps of: weighing Bi, Pb, Sr, Ca, and Cu nitrate in a cation ratio of 2-x: y: 2: 2.2: 3 (x, y = 0.2-0.4) After dissolving, Bi-2223 precursor powders were prepared by using a spray drier, and the powders were calcined at 800 to 820C for 3 hours or more and heat-treated at 830 to 850C for 30 to 100 hours Bi-2223 A method for manufacturing a high-temperature superconductor.