Advances in thermodynamics of solid surfaces

-- Abstract- The thermodynamics of solid surfaces is the least developed part of the surface thermodynamics. The Gibbs ad-sorption equation referred only to fluid systems, and an analogous equation for deformable solids was derived consi-derably later. Its general interpretation is complemented now by the concept of the tensorial anisotropic chemical po-tential corresponding to an anisotropic deformation state in a solid. Surface stresses produce the mechanical surface ten-sion of which the direct measurement was a great problem up to now. The first method of measuring surface tension of so-lids has been proposed very recently and is based on the ef-fect of deformation on solubility