WebWe address the linear stability of unsteady and nonuniform base states within the class of mass conserving free boundary problems for degenerate and nondegenerate thin film equations. Well-known examples are the finger-instabilities of growing rims that appear in retracting thin solid and liquid films. 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 …

Thitiporn Kaewpetch, Ph.D - Faculty Member - Department of …

WebFeb 22, 2011 · Capillary Instabilities in Thin, Polycrystalline Films David J. Srolovitz & S. A. Safran MRS Online Proceedings Library 47 , 53–60 ( 1985) Cite this article 5 Citations … 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. martha llamile ortiz brena

Novel 3-D Structures in Polymer Films by Coupling External and …

WebVery thin films, less than 100 nm-thick, are used in a variety of applications, including as catalysts and for thin film reactions to form patterned silicides in electronic devices. Because of their high surface to volume ratio, these very thin films are subject to cap-illary … 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. datafox evo 5.0 pure