Ordering of Defects, Thermodynamic and Transport Properties of Solid Oxide Electrolytes with Fluorite Structure

Autor:	V. A. Mezrin, V. N. Chebotin
Rok vydání:	1985
Předmět:	Lanthanide Dopant Chemistry Inorganic chemistry Oxide Thermodynamics Electrolyte Condensed Matter Physics Fluorite Electronic Optical and Magnetic Materials Crystal chemistry.chemical_compound Ionic conductivity Solid solution
Zdroj:	physica status solidi (a). 89:199-211
ISSN:	1521-396X 0031-8965
Popis:	The solid solution MO2 + MeOr (M = Zr, Hf, Ce, Th; Me = Ca, Sr, Sc, Y, the lanthanides) is considered. A model describing the defect structure of a crystal with consideration of short-range order in the arrangement of defects is proposed. The defect interaction is expressed in the pairwise approximation. The short-range order is characterized by the mean probability of finding a dopant cation in the site nearest to the oxygen vacancy. This probability is calculated using the minimum free energy condition. On the basis of the proposed model expressions are derived for the chemical potentials of components and for the ionic conductivity of the system as a function of composition. The calculated curves are in good agreement with the experimental ones. [Russian Text Ignored].
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::75dbc258f1a1dd2b2ea877673fc97535 https://doi.org/10.1002/pssa.2210890120 Zobrazit plný text záznamu Plný text