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Decrease of the adhesion force with vapor pressure

AuthorsKöber, Mariana; Sahagún, Enrique; García-Mochales, Pedro ; Briones Fernández-Pola, Fernando ; Luna, Mónica ; Sáenz, J. J.
Issue Date2010
CitationNanoSpain 2010
AbstractExperimental evidence of a monotonous decrease of the capillary forces between hydrophilic surfaces with increasing relative humidity from 0 to 100% is presented. In concordance with the results of a theoretical simulation, we identified the objects’ shape as the origin of different adhesion force vs. RH behaviours when treating with nanoscale objects. If the water neck is formed between a flat surface and a nanometric object presenting a truncated cone shape the adhesion force decreases with increasing vapour pressure. The variety of meniscus force behaviours found for different shapes emphasizes the importance of geometry in capillary phenomena at the nanometric scale.
DescriptionTrabajo presentado a NanoSpain 2010 celebrado en Málaga del 23-26 Marzo, 2010. -- Incluye comunicación oral y póster.
Appears in Collections:(IMN-CNM) Comunicaciones congresos
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