A Simple Model for Surface Energy and Various Metal Interfaces 650029
Modern experimental techniques for the evaluation of the structure and properties of the true vacuum-solid interface have led to the development of more exact models for such surface-dependent phenomena as oxidation, catalysis, corrosion, adhesion, and friction. An examination of the classical statistical theories of surfaces is presented with particular emphasis on the metallic state. The statistical, or thermodynamical, approach is then compared to a simple atomic model which is developed on the basis of some of the more recent experimental data. The atomic model is studied for consistency with such well-established phenomena as surface energy and its variation with crystallographic orientation, adsorption, grain boundary formation, and certain diffusion-bonding systems.