Wetting, multilayer adsorption, and interface phase transitions

Autor: M. R. Moldover, J. W. Schmidt
Rok vydání: 1984
Předmět:
Zdroj: Physica D: Nonlinear Phenomena. 12:351-359
ISSN: 0167-2789
DOI: 10.1016/0167-2789(84)90538-4
Popis: When two fluid phases coexist near their mutual critical point, one fluid phase forms a layer which intrudes between the other fluid phase and any third phase that happens to be present. As the two fluid phases are taken away from their critical point, a phase transition often occurs such that the intruding layer vanishes. Recent evidence is presented that the transition from the complete wetting (intruding layer) configuration to the incomplete wetting (three-phase contact) configuration is a first-order phase transition. The thickness of the intruding layers has been measured for diverse systems. These data are not fully understood. The intruding layers are extreme examples of multilayer adsorption. Certain theories predict that a 'prewetting' transition from high adsorption to low adsorption is associated with the transition from complete wetting to incomplete wetting. Present search for this transition is inconclusive.
Databáze: OpenAIRE