TY - JOUR

T1 - On the Thermodynamics of Thin Films. The Frumkin Equation

AU - Rusanov, A. I.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Abstract: The Frumkin equation—a fundamental law of the thermodynamics of thin films—relates the surface tension of an interfacial region, which includes a thin film, to its disjoining pressure and thickness. The study of the original work has shown that the first derivation of this relation published by A.N. Frumkin in 1938 is thermodynamically inconsistent. In this article, the way is shown in which the Frumkin equation should be correctly derived, interpreted, and used. The following approaches are discussed: the finite-thickness layer method; the Gibbs methods with one, two, and three dividing surfaces; and the gravitational-field method.

AB - Abstract: The Frumkin equation—a fundamental law of the thermodynamics of thin films—relates the surface tension of an interfacial region, which includes a thin film, to its disjoining pressure and thickness. The study of the original work has shown that the first derivation of this relation published by A.N. Frumkin in 1938 is thermodynamically inconsistent. In this article, the way is shown in which the Frumkin equation should be correctly derived, interpreted, and used. The following approaches are discussed: the finite-thickness layer method; the Gibbs methods with one, two, and three dividing surfaces; and the gravitational-field method.

UR - http://www.scopus.com/inward/record.url?scp=85077779386&partnerID=8YFLogxK

U2 - 10.1134/S1061933X19060152

DO - 10.1134/S1061933X19060152

M3 - Article

AN - SCOPUS:85077779386

VL - 81

SP - 741

EP - 746

JO - Colloid Journal

JF - Colloid Journal

SN - 1061-933X

IS - 6

ER -