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Phenomenological Thermodynamic Treatment of Elastically Stressed Ionic Crystals
Author(s) -
Johnson William C.,
Schmalzried Hermann
Publication year - 1993
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.1151-2916.1993.tb06639.x
Subject(s) - ionic bonding , valence (chemistry) , materials science , phenomenological model , thermodynamics , charge density , semiconductor , condensed matter physics , thermodynamic equilibrium , thermodynamic potential , thermal conduction , chemistry , physics , ion , quantum mechanics , optoelectronics , organic chemistry
A phenomenological thermodynamic treatment of multicomponent, elastically stressed ionic crystals is presented and the conditions for thermodynamic equilibrium derived using a Gibbsian variational approach. By assuming that the electrostatic and electronic contributions to the internal energy density are determined by the local electric displacement and the distribution of unassociated charge between the valence and conduction bands, respectively, (metallic) conductors, semiconductors, and insulators can be treated. This approach is compatible with thermodynamic treatments of stressed metallic systems and the structure‐element description of ionic crystals.