Wetting transition of water on graphite and other surfaces
Materials Science
2007-05-23 v1
Abstract
A wetting transition occurs when the contact angle of a liquid drop on a surface changes from a nonzero value to zero. Such a transition has never been observed for water on any solid surface. This paper discusses the value of the temperature T_w at which the transition should occur for water on graphite. A simple model, previously used for nonpolar fluids, predicts the value of as a function of the well-depth D of the adsorption potential. While is not well known for the case of water/graphite, the model implies that T_w is likely to fall in the range 350 to 500 K. Experimental search for this transition is warranted. Water wetting transition temperatures on other surfaces are also discussed.
Cite
@article{arxiv.cond-mat/0404346,
title = {Wetting transition of water on graphite and other surfaces},
author = {S. M. Gatica and J. K. Johnson and X. C. Zhao and M. W. Cole},
journal= {arXiv preprint arXiv:cond-mat/0404346},
year = {2007}
}
Comments
14 pages, 2 figures