Abstract
The phase equilibria near (Bi,Pb)2Sr2Ca2Cu3O10+delta ((Bi,Pb)‐2223) was studied in the temperature range of 750°‐820°C in air and in reducing atmospheres. In air, (Bi,Pb)‐2223 was in equilibrium with one or more of the following phases: (Bi,Pb)2Sr2CaCu2O8+delta ((Bi,Pb)‐2212), (Sr,Ca)14Cu24O41 (14:24), (Ca,Sr)2CuO3, (Bi,Pb)4(Sr,Ca)5‐CuOx (451), Ca2PbO4, and CuO. Ca2PbO4 and the 451 phase were not in equilibrium with (Bi,Pb)‐2223 at an oxygen partial pressure (pO2) of 10‐3 atm, which is indicative of higher lead solubility in (Bi,Pb)‐2223 under more‐reducing conditions. In a second set of experiments, the lead content in both (Bi,Pb)‐2212 single crystals and (Bi,Pb)‐2223 powders was investigated as a function of pO2 at a constant temperature of 750°C. Lead solubility in (Bi,Pb)‐2212 and (Bi,Pb)‐2223 increased as pO2 decreased.
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Dates
Type | When |
---|---|
Created | 15 years, 1 month ago (July 23, 2010, 7:17 a.m.) |
Deposited | 1 year, 9 months ago (Nov. 23, 2023, 11:28 a.m.) |
Indexed | 5 months ago (April 1, 2025, 7:03 a.m.) |
Issued | 27 years, 4 months ago (May 1, 1998) |
Published | 27 years, 4 months ago (May 1, 1998) |
Published Online | 20 years, 7 months ago (Jan. 20, 2005) |
Published Print | 27 years, 4 months ago (May 1, 1998) |
@article{MacManus_Driscoll_1998, title={Phase Equilibria near (Bi,Pb)‐2223, As a Function of Oxygen Partial Pressure}, volume={81}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1998.tb02485.x}, DOI={10.1111/j.1151-2916.1998.tb02485.x}, number={5}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={MacManus‐Driscoll, Judith L. and Yi, Zhuan}, year={1998}, month=may, pages={1322–1328} }