An Interface Phase Transition: Complete to Partial Wetting

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Science  07 Mar 1980:
Vol. 207, Issue 4435, pp. 1073-1075
DOI: 10.1126/science.207.4435.1073


When two fluid phases are near a critical point, one of them will be excluded from contact with any third phase that happens to be present by a wetting film of the other critical phase. A simple and quite general strategy that may be used to induce a phase transition from complete wetting of the third phase to incomplete wetting is to add a new component to the fluid phases chosen to drive the two phases away from their critical point. This strategy is illustrated for methanol-cyclohexane mixtures.