ABSTRACT

In this chapter, the method of the electron density functional is used to examine the technique of calculating the adhesion characteristics of the metal contact, taking into account gradient corrections for the heterogeneity of the system in the interfacial region between the media. The results of calculating the interfacial energy of interaction, the adhesion energy and the force of adhesive interaction of various metals and their melts are used to analyze the adhesion characteristics depending on the distance between the surfaces of metals and dielectric constant of the intermediate layer. The calculation of the parameters of the displacement of surface ion planes of the contacting metals with respect to their bulk position in the interphase region of the interface is carried out, and the dependence of these displacement parameters on the distance between the surfaces of metals and dielectric permittivity of the interlayer is analyzed. The influence of these effects of surface relaxation in the interfacial region on the adhesion characteristics of the contact of different metals is investigated. Based on the analysis of components of the interfacial energy the physical features of interaction between the metals are studied.