Abstract
Wetting is studied for the binary mixture methane–perfluoromethane (CH4–CF4) with the Born–Green–Yvon (BGY) equation in the attractive mean field approximation (AMFA). The general phase behavior is consistent with the AMFA equation of state. Close to a three-phase equilibrium L1L2 V, perfect wetting of the interface L1 V by the second liquid phase L2 occurs. Liquid–vapor and liquid–liquid interfaces in the vincinity of the three-phase equilibrium are calculated with the BGY equation, and the surface tension is estimated from the density profiles. The results are compared to previous investigations of wetting in fluid systems, especially the theory of Cahn.
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