Volume 68, Number 3, November 2004
|Page(s)||419 - 425|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||09 October 2004|
Wetting transitions on rough surfaces
Department of Physics, Graduate School of Humanities and Sciences Ochanomizu University - 2–1–1, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
2 Physique de la Matière Condensée, Collège de France, UMR 7125 du CNRS 11 place Marcelin-Berthelot, 75231 Paris Cedex 05, France
Corresponding author: email@example.com
Accepted: 1 September 2004
We consider microscopic contact states of a drop deposited on textured rough surfaces. The energies of three possible (meta)stable wetting states are compared and the lowest energy state is regarded as the “phase”. We present the “phase diagrams” in the two-dimensional space of texture parameters, which suggests transitions between the wetting states. We propose a model which allows the description of transition states between (meta)stable contact states and quantify the energy barriers between them. Thereby, we theoretically suggest that the actually realized state is not always the lowest energy state.
PACS: 68.08.Bc – Wetting / 68.35.Md – Surface thermodynamics, surface energies / 81.16.Nd – Nanolithography
© EDP Sciences, 2004
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