Effect of B₂O₃ Addition on Synthesis of Superconducting Oxide Bi-Sr-Ca-Cu-O

Abstract

Bi-Sr-Ca-Cu-O ceramics with B₂O₃ additive were shynthesized. The magnetic shielding effect for the sample containing B₂O₃ was larger than that without B₂O₃. However, the XRD intensities of 2223 phase for both samples were almost the same. Therefore, it is considered that 2223 phase surrounds a non-superconductive phase in the B₂O₃-containing sample.