Preparation of Superconducting Bi-Pb-Sr-Ca-Cu-O Glass Ceramics with Tc,zero=106 K

Abstract
Superconducting Bi-Pb-Sr-Ca-Cu-O glass ceramics were prepared by the melt quenching method. The T c,onset and T c,zero of the sample annealed at 845°C for 24 h in air were 115 K and 106 K, respectively. From the results of X-ray diffraction and SEM observation, it was inferred that the c-axis was oriented in parallel with the surface of the annealed sample.