Cross Effects in Solid-Phase Transformation
A. G. KNYAZEVA
Institute of Strength Physics and Materials Science, Siberian Branch
of the Russian Academy of Sciences, Pr. Akademichesky 2/1,
Tomsk 634021 (Russia), E-mail: anna@ispms.tsc.ru
Pages: 57-64
Abstract
The analysis of some cross effects accompanying solid-phase transformations is performed within the frame of the thermodynamics of irreversible processes. Solid-phase systems capable of chemical transformations belong to complicated thermodynamic systems the state of which, unlike the one thermodynamically equilibrium, can be described by introducing additional thermodynamic parameters. Methods of describing additional parameters may be different depending on specific physicochemical situation and required detailing degree. Many cross effects discussed during thermodynamic analysis are known from experiment even if this is not mentioned. Partial models taking account of different crosse effects are known in continuum mechanics. Examples are presented that illustrate the principal role of interconnections between different phenomena, which is necessary to take into account in mathematical description of solid-phase transformations.
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