
Abstract We investigate the coating of a glass plate with silica colloids by a dip coating method in presence of evaporation. We show experimentally that the deposed quantity plotted versus plate velocity V exhibits a minimum, in agreement with a simple argument developed by us in a previous, theoretical paper. This minimum corresponds to a crossover between the well-known Landau–Levich regime observed at higher plate velocity and a less well-known regime at lower plate velocity where the deposit is formed directly at the contact line. This very general result is consistent with experiments and calculations made by other teams with different compounds or under different drying geometries. Modifying our initial argument by taking into account the particle density gradient, we show that a simple modeling of each regime in terms of scaling laws is possible, the deposed mean thickness scaling respectively as V−1 and V2/3 in the lower and higher velocity limits.
[SPI] Engineering Sciences [physics], [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, coating, [PHYS.PHYS.PHYS-FLU-DYN] Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn], [SPI.FLUID] Engineering Sciences [physics]/Reactive fluid environment, [SPI.MAT] Engineering Sciences [physics]/Materials, [PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [PHYS.COND.CM-SCM] Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft], colloids, wetting and evaporation, drying, moving contact line
[SPI] Engineering Sciences [physics], [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, coating, [PHYS.PHYS.PHYS-FLU-DYN] Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn], [SPI.FLUID] Engineering Sciences [physics]/Reactive fluid environment, [SPI.MAT] Engineering Sciences [physics]/Materials, [PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [PHYS.COND.CM-SCM] Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft], colloids, wetting and evaporation, drying, moving contact line
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| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
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