SYNTHESIS OF HIGHLY PURE BI-2223 CERAMICS USING DEFINED PRECURSORS

Citation
A. Sotelo et al., SYNTHESIS OF HIGHLY PURE BI-2223 CERAMICS USING DEFINED PRECURSORS, Physica. C, Superconductivity, 272(1-2), 1996, pp. 115-124
Citations number
21
Categorie Soggetti
Physics, Applied
ISSN journal
09214534
Volume
272
Issue
1-2
Year of publication
1996
Pages
115 - 124
Database
ISI
SICI code
0921-4534(1996)272:1-2<115:SOHPBC>2.0.ZU;2-W
Abstract
Use of a new process based on detailed phase diagram studies of the sy stem Bi2O3-PbO-SrO-CaO-CuO results in formation of nearly single-phase (Bi,Pb)(2)Sr2Ca2Cu3O10 (2223) ceramics. Different mixtures of defined precursor were prepared and studied in order to overcome the very slo w kinetics of the reaction forming 2223. The best results have been ob tained with mixtures of Bi1.84Pb0.34Sr1.8Ca1.2Cu2O8, Ca2CuO3 and CuO, and Bi1.84Pb0.34Sr1.7Ca1.3Cu2O8,Sr0.2Ca1.8CuO3 and CuO.