Wetting, Spreading and Reactions at Liquid/Solid Interfaces
A surface represents the discontinuity of the bulk structure; the resulting distortion and change in coordination number of the atoms at the surface causes a higher free energy over a corresponding plane and number of atoms in the bulk. This excess free energy is defined as surface energy or the solid/vapor interfacial energy, γsv. The same analysis applies to an interface between condensed phases, e. g. a solid and liquid, which would then be referred to as solid/liquid interfacial energy,γs1.
KeywordsContact Angle Interfacial Energy Excess Free Energy High Free Energy Angle Form
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