Drop-wise and film-wise water condensation processes occurring on metallic micro-scaled surfaces
| Autor: | Edward Bormashenko, V. V. Danchuk, Irina Legchenkova, Zahava Barkay, Anton Starostin, Viktor Valtsifer |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
FOS: Physical sciences General Physics and Astronomy chemistry.chemical_element Applied Physics (physics.app-ph) 02 engineering and technology Condensed Matter - Soft Condensed Matter 010402 general chemistry 01 natural sciences Metal Aluminium Drop (liquid) Condensation Physics - Applied Physics Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Chemical engineering chemistry visual_art visual_art.visual_art_medium Soft Condensed Matter (cond-mat.soft) Wetting 0210 nano-technology |
| Zdroj: | Applied Surface Science. 444:604-609 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2018.03.065 |
| Popis: | 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. 20 pages, 6 figures |
| Databáze: | OpenAIRE |
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