Synthesis of 37Å Phase in Superconducting Bi-Sr-Ca-Cu-O system

Abstract

Formation of 37Å phase in Bi-Sr-Ca-Cu-O ceramics was accelerated by milling and re-sintering of sintered body. The ceramics which almost consists of 37Å phase by this method has small grain size compared with no milling ceramics. The supercondictive property of the Bi₂Sr₂Ca₂Cu₄O_x ceramics was depressed by the milling and re-sintering method though it has large volume fraction of 37Å phase.