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Lattice Dilatation in High‐Concentration Binary Solid Solutions
Author(s) -
Maiti S. N.,
Roy D.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221220209
Subject(s) - halide , additive function , lattice (music) , thermodynamics , molar volume , alkali metal , materials science , binary number , solid solution , chemistry , mathematics , mathematical analysis , physics , inorganic chemistry , metallurgy , arithmetic , organic chemistry , acoustics
A simple extension of Huang's theory of lattice dilatation for low concentration is found to reproduce Retger's law of additivity of molar volume. Deviation from the law is accounted for by considering the elastic strength of the defect to be concentration dependent and an attempt is made to calculate the elastic strength of the defect from the parameters of the perfect crystal. The method is then used to predict the concentration dependence of volume over the entire concentration range of eight alkali halide solid solutions and two metallic alloys and fairly good agreement is obtained.