On the Stability of a Binary Mixture in Nanostructures


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Abstract

The problem of stability of a mixture of two liquids between two conductive plates separated by characteristic distances about several nanometers is considered. In this case, an additional term appears in the expression for the Helmholtz energy, which depends on the distance between the plates and also on the dielectric permittivity of the liquids. The thermodynamic properties of such a system differ from those in the bulk of the system. The influence of the additional term is demonstrated by numerical solutions of two problems: 1) computation of the parameters of the mixture between the plates, when there is a thermodynamic equilibrium with the same mixture in the bulk; 2) computation of two states of the mixture that can coexist in thermodynamic equilibrium between the plates.

About the authors

A. Yu. Demianov

Moscow Institute of Physics and Technology (State University)

Author for correspondence.
Email: alexdem236@yandex.ru
Russian Federation, Moscow

O. Yu. Dinariev

Moscow Schlumberger Research Center

Email: alexdem236@yandex.ru
Russian Federation, Moscow

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