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Spinodal Decomposition in Ionic Compounds
Author(s) -
VIRKAR ANIL V.,
PLICHTA MARK R.
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10080.x
Subject(s) - spinodal decomposition , decomposition , kinetics , chemistry , ionic bonding , cationic polymerization , spinodal , activation energy , ion , solid solution , thermodynamics , inorganic chemistry , chemical physics , materials science , phase (matter) , organic chemistry , physics , quantum mechanics
Spinodal decomposition in ionic solid solutions of the form AX‐BX where A and B are cations and X is the anion is examined along similar lines as proposed by Cahn. Assuming anions to be immobile, electrostatic energy arising due to the differences in cationic mobilities is determined. This electrostatic energy is shown to retard the kinetics of spinodal decomposition. The role of aliovalent dopants on the kinetics of decomposition is also examined. Subsequently, the probable role of aluminum on spinodal decomposition in the system TiO 2 ‐SnO 2 is assessed.