THERMODYNAMIC ACTIVITY OF LIQUID ZN-CD ALLOYS STUDIED BY EMF METHOD WITH ZIRCONIA SOLID-ELECTROLYTE

Authors
KATAYAMA I MAKI K FUKUDA Y EBARA A IIDA T
Citation
I. Katayama et al., THERMODYNAMIC ACTIVITY OF LIQUID ZN-CD ALLOYS STUDIED BY EMF METHOD WITH ZIRCONIA SOLID-ELECTROLYTE, Materials transactions, JIM, 38(2), 1997, pp. 119-122
Citations number
20
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Materials transactions, JIM → ACNP
ISSN journal
09161821
Volume
38
Issue
2
Year of publication
1997
Pages
119 - 122
Database
ISI
SICI code
0916-1821(1997)38:2<119:TAOLZA>2.0.ZU;2-X
Abstract
The E.M.F. of the galvanic cell with zirconia solid electrolytes was m easured to determine the activities of zinc at 800-900 K over the enti re composition range of liquid Zn-Cd alloys, and some thermodynamic fu nctions were derived from the results. The cell used was as follows: ( -) W\Zn, ZnO\ZrO2(+Y2O3)\Zn-Cd(l), ZnO\W (+) The activities of zinc in the alloys at 800 and 900 K show moderately positive deviations from Raoult's law over the whole composition range. They are compared with the literature data. The results were used to calculate the concentrat ion fluctuations in long wavelength limit in the liquid alloys.