Unraveling wetting transition through surface textures with X-rays
Lee, Jae Bong
Tiwari, Manish K.
Carmeliet, Jan C.
- Journal Article
Rights / licenseCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported
In this report we show that synchrotron X-ray radiography is a powerful method to study liquid-air interface penetration through opaque microtextured surface roughness, leading to wetting transition. We investigate this wetting phenomenon in the context of sessile drop evaporation, and establish that liquid interface sinking into the surface texture is indeed dictated by the balance of capillary and Laplace pressures, where the intrinsically three-dimensional nature of the meniscus must be accounted for. Air bubble entrapment in the texture underneath impacting water drops is also visualized and the mechanisms of post-impact drop evaporation are discussed. Show more
Journal / seriesScientific Reports
Pages / Article No.
PublisherNature Publishing Group
SubjectSuperhydrophobic surface; Impalement transitions; Droplet evaporation; Mechanism; Dynamics; Impact
Organisational unit03806 - Carmeliet, Jan / Carmeliet, Jan
03462 - Poulikakos, Dimos / Poulikakos, Dimos
03817 - Stampanoni, Marco F.M. / Stampanoni, Marco F.M.
135479 - Towards Supericephobic Surfaces - A Fundamental Study into the Effects of Morphology and Surface Functionality on Ice Formation and Adhesion (SNF)
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