NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2012, 3 (4), P. 122–133
THE PHENOMENOLOGICAL THEORY OF THE COLLAPSE TETRACRITICAL POINT OF THE PHASE DIAGRAM
A.A. Mukovnin – The South-Russia State Technical University, Novocherkassk, Russia, Senior Engineer of laboratory “Design of New Materials”, forever_young@inbox.ru
V.M. Talanov – The South-Russia State Technical University, Novocherkassk, Russia, Head of Department of General and Inorganic Chemistry, Doctor of Chemistry, Professor, valtalanov@mail.ru
In the framework of the phenomenological theory of phase transitions for the thermodynamic potential invariant under a group of transformations C3V (3m), the results of the analysis of the collapse of the multicritical point. The conditions of the decay of multicritical point are obtained, possible types of “derivative” phase diagrams are listed. As an illustration, we present some calculated phase diagrams. These results are consistent with experimental data.
Keywords: phase transitions, phase diagrams, the multicritical point, non-autonomous phase, non-autonomous state of matter, nanostructures.
UDC 544.015.32
PACS 86.60.-S; 61.50.Ks
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