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

Antonini, C., Lee, J., Maitra, T., Irvine, S., Derome, D., Tiwari, M., et al. (2014). Unraveling wetting transition through surface textures with X-rays: Liquid meniscus penetration phenomena. SCIENTIFIC REPORTS, 4 [10.1038/srep04055].

Unraveling wetting transition through surface textures with X-rays: Liquid meniscus penetration phenomena

Antonini, C;
2014

Abstract

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
Articolo in rivista - Articolo scientifico
superhydrophobicity
English
2014
4
4055
open
Antonini, C., Lee, J., Maitra, T., Irvine, S., Derome, D., Tiwari, M., et al. (2014). Unraveling wetting transition through surface textures with X-rays: Liquid meniscus penetration phenomena. SCIENTIFIC REPORTS, 4 [10.1038/srep04055].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/218152
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