Determination of the activities of {xCaO +(1-x)LaCrO3} in the temperature range 1073 K to 1273 K by e.m.f. measurements

Authors
Rog, G Kozlowska-Rog, A Bucko, M
Citation
G. Rog et al., Determination of the activities of {xCaO +(1-x)LaCrO3} in the temperature range 1073 K to 1273 K by e.m.f. measurements, J CHEM THER, 32(6), 2000, pp. 799-803
Citations number
8
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL THERMODYNAMICS
ISSN journal
00219614 → ACNP
Volume
32
Issue
6
Year of publication
2000
Pages
799 - 803
Database
ISI
SICI code
0021-9614(200006)32:6<799:DOTAO{>2.0.ZU;2-V
Abstract
The activities of CaO and LaCrO3 in {xCaO + (1 - x)LaCrO3}, 0 < x less than or equal to 0.4, have been determined in the temperature range 1073 K to 1 273 K by solid-electrolyte galvanic cells. Composite ionic conductors based on CaF2 and Ca-beta "-Al2O3 were applied as solid electrolytes. It was fou nd that the solid solutions formed within the composition range 0 < x less than or equal to 0.25 exhibited strong positive deviation from ideal behavi our. (C) 2000 Academic Press.