Topic
Surface tension
About: Surface tension is a research topic. Over the lifetime, 25410 publications have been published within this topic receiving 695471 citations.
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TL;DR: A method is presented to solve two-phase problems involving soluble surfactants using a non-linear multigrid method based on the use of a diffuse interface, which allows a simple implementation using standard finite difference or finite element techniques.
206 citations
TL;DR: In this article, it has been shown that it is possible to form micrometer rings and hexagonal arrays made of nanocrystals of different sizes, shapes and materials driven by surface tension gradients that induce Benard−Marangoni instabilities in liquid films.
Abstract: By controlling solvent evaporation rates, it has been possible to form micrometer rings and hexagonal arrays made of nanocrystals of different sizes, shapes and materials. Such patterns are driven by surface tension gradients that induce Benard−Marangoni instabilities in the liquid films. The resulting self-assembled structures are consistent with theoretical prediction of hydrodynamic instabilities.
206 citations
15 Mar 2004
TL;DR: The specific mathematical methods used to obtain results are illustrated by using as an example a base of data obtained by the supporters of the equation-of-state theory (EQS) and the achievements are appreciably good and the agreement between STC and EQS is discussed.
Abstract: The acid-base approach to the calculation of solid surface free energy and liquid-liquid interfacial tensions is a practical example of application of correlation analysis, and thus it is an approximate approach. In these limits, and provided that wide and well-obtained sets of contact angles or interfacial tension data are used for their computation, surface tension components can be considered as material properties. Although their numerical value depends on the characteristics of the chosen reference material, their chemical meaning is independent on the selected scale. Contact angles contain accessible information about intermolecular forces; using surface tension component (STC) acid-base theory, one can extract this information only making very careful use of the mathematical apparatus of correlation analysis. The specific mathematical methods used to obtain these results are illustrated by using as an example a base of data obtained by the supporters of the equation-of-state theory (EQS). The achievements are appreciably good and the agreement between STC and EQS is discussed.
205 citations
TL;DR: In this paper, the effect of pressure on the surface tension of water was investigated in a number of gas-water systems at 25/sup 0/ using a capillary-rise method.
Abstract: In recent years, there has been a resurgence in interest concerning bulk and surface properties of water. One area of research that has received comparatively little attention concerns the effect of pressure on the surface tension of water. This paper reports results obtained in measuring interfacial tension as a function of pressure for a number of gas-water systems at 25/sup 0/ using a capillary-rise method. The systems involving water with carbon dioxide and nitrous oxide were of particular interest, since it is known that on the one hand these gases are more soluble than expected in bulk water while on the other hand water is abnormally soluble in compressed CO2 and N2O, leading to the question of whether a corresponding anomaly is to be found with respect to adsorption at the interface of water with these 2 gases. (36 refs.)
205 citations
TL;DR: Ionicliquid surfactants that are magneto-responsive, thus offering the potential to perturb liquid emulsions simply by the application of an external magnetic field are reported for the first time.
Abstract: are well known. Here we report for the first time ionicliquid surfactants that are magneto-responsive, thus offeringthe potential to perturb liquid emulsions simply by theapplication of an external magnetic field. Although ionicliquids(ILs)containingtransitionmetalcomplexeshavebeenknown for some time,
205 citations