Burian S. Mechanisms of influence of the size dependence of the surface and the linear tension on the shape and wettability of a nanodroplet

The dissertation is devoted to an establishment of the physical laws of the phenomena arising out of the interfacial region and an explanation of the mechanisms of their influence on the nanoscale system in general, and the study of the wetting of a solid substrate by a nanoscale liquid droplet, in particular. The features of the size and temperature dependence of the surface tension of cylindrical and spherical droplets and bubbles were established. The influence of the size dependence of the surface and linear tension on a shape of the surface of a small droplet and on its equilibrium contact wetting angle was investigated. An effective method for determining the parameters of the interaction potential between different types of atoms (liquid droplet and solid substrate) based on the experimental value of the contact angle was proposed. The patterns impact of a reverse adsorption on the shape and the size of nanodroplets were established. The research carried out using the atomistic approach and computer simulations by methods of classical molecular dynamics and mathematical models, which are based on phenomenological representations in the classical thermodynamics using the theory of Euler's homogeneous function, tensor calculus and variational methods of mathematical physics like a mathematical apparatus, for the correct formulation and the achievement of the envisaged targets were presented in this dissertation.