New Method To Synthesize Precursor Powders For High-T-C Superconductor

In this paper, a high-efficient method to synthesize high-T-c superconducting precursor powders is presented. It overcomes the intrinsic weakness of traditional coprecipitation process, in which no suitable pH value can be adjusted to coprecipitate all kinds of cations completely. It is possible to synthesize superconducting precursor powders in medium scale production, and the powders synthesized by this method meet requirement of Bi-system or Y-system superconductor. (C) 2000 Elsevier Science B.V. All rights reserved.