Is there an Optimal Substrate Geometry for Wetting ?
Condensed Matter
2007-05-23 v1
Abstract
We consider the problem of the Winterbottom's construction and Young's equation in the presence of a rough substate and establish their microscopic validity within a 1+1-dimensional SOS type model. We then present the low temperature expansion of the wall tension leading to the Wenzel's law for the wall tension and its corrections. Finally, for a fix roughness, we compare the influence of different geometries of the substrate on wetting properties. We show that there is an optimal geometry with a given roughness for a certain class of simple substrates. Our results are in agreement and explain recent numerical simulations.
Cite
@article{arxiv.cond-mat/9905213,
title = {Is there an Optimal Substrate Geometry for Wetting ?},
author = {Joel De Coninck and Salvador Miracle-Sole and Jean Ruiz},
journal= {arXiv preprint arXiv:cond-mat/9905213},
year = {2007}
}
Comments
30 pages, 5 figures, postscript