Bi-BASE SUPERCONDUCTOR AND ITS MANUFACTURING METHOD, SUPERCONDUCTING WIRE MATERIAL AND SUPERCONDUCTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a Bi-base superconductor having a critical temperature of higher than 110.0 K and to provide its manufacturing method. SOLUTION: The Bi-base superconductor contains (Bi, Pb) 2223 as a superconducting phase and has a first critical temperature of 110.0 K or above, at which temperature a magnetic susceptibility measured in a state in which a magnetic field is applied in a direction parallel with a c axis of the (Bi, Pb) 2223 and standardized at 95 K is -0.001. COPYRIGHT: (C)2007,JPO&INPIT