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The chemical potential for interstitials in solid solution
Author(s) -
Buck H.,
Alefeld G.
Publication year - 1971
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.2220470123
Subject(s) - van der waals force , lattice (music) , thermodynamics , entropy (arrow of time) , chemical physics , materials science , configuration entropy , interstitial defect , chemistry , condensed matter physics , physics , molecule , organic chemistry , acoustics , doping
The configurational entropy and the chemical potential in the molecular‐field approximation are derived for interstitials in solids applying the following model: The host lattice is divided into cells of such a size that at maximum concentration each cell is occupied by one interstitial. Within each cell the interstitial may occupy n distinguishable positions. For n = 1 the results of the lattice gas model are reproduced whereas n ≫ 1 yields the van der Waals isotherms.