WebFeb 22, 2011 · Thin films can break up into islands only if they are perturbed by substrate-intersecting perturbations. Grain boundary grooves and vertex pits are typical defects which nucleate holes in these films. WebJul 17, 2009 · When DC electric fields are applied to a thin liquid film, the interface may become unstable and form a series of pillars. In this paper, we apply lubrication theory to examine the possibility of using AC electric fields to exert further control over the size and shape of the pillars.
Thermocapillary Instabilities - ResearchGate
WebIt is argued that the presence of an acoustic disjoining pressure is necessary to adequately describe some of these experimental results on the dewetting of thin polymer films. Abstract.The spontaneous break-up of thin films is commonly attributed to the destabilizing effect of van der Waals forces. Dispersion forces can be considered in terms of the … WebCoating and thin films are widely used in many applications e.g. paints, cosmetics, optical devices, and pharmaceutical films. Interactions between components within films result in different microstructures which change due to external … maximin criterion table
Interfacial instabilities in Marangoni-driven spreading of polymer ...
WebSince all small (nonsubstrate intersecting) perturbations to the film surface decay, we consider the evolution of large perturbations, in the form of a single hole which exposes the substrate. For large holes, the hole radius increases at a constant rate under the assumption of evaporation/condensation kinetics. WebDOI: 10.1016/0956-7151(92)90037-F Corpus ID: 95599303; Capillary instabilities in thin films: A model of thermal pitting at grain boundary vertices @article{Gnin1992CapillaryII, title={Capillary instabilities in thin films: A model of thermal pitting at grain boundary vertices}, author={François Y. G{\'e}nin and W. W. Mullins and Paul Wynblatt}, … WebJan 9, 2006 · Evaporation is a complicated fluid phenomenon involving the combined effects of several physical mechanisms including capillary- and gravity-induced interface instabilities, buoyancy, and thermocapillary flows, and vapor recoil deformation of the vapor-liquid interface. The combined effect of all these mechanisms leads to a … hernando county fairgrounds fl