Drop-Wise and Film-Wise Water Condensation Processes Occurring on Metallic Micro-Scaled Surfaces
Applied Physics
2018-04-18 v1 Soft Condensed Matter
Abstract
Water condensation was studied on silanized (superhydrophobic) and fluorinated (superoleophobic) micro-rough aluminum surfaces of the same topography. Condensation on superhydrophobic surfaces occurred via film-wise mechanism, whereas on superoleophobic surfaces it was drop-wise. The difference in the pathways of condensation was attributed to the various energy barriers separating the Cassie and Wenzel wetting states on the investigated surfaces. The higher barriers inherent for superoleophobic surfaces promoted the drop-wise condensation. Triple-stage kinetics of growth of droplets condensed on superoleophobic surfaces is reported and discussed.
Keywords
Cite
@article{arxiv.1803.05713,
title = {Drop-Wise and Film-Wise Water Condensation Processes Occurring on Metallic Micro-Scaled Surfaces},
author = {Anton Starostin and Viktor Valtsifer and Zahava Barkay and Irina Legchenkova and Viktor Danchuk and Edward Bormashenko},
journal= {arXiv preprint arXiv:1803.05713},
year = {2018}
}
Comments
20 pages, 6 figures