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: This work experimentally studied the effect of concentration of asphaltenes and resins on static and dynamic properties of oil-air interfaces and also on bulk viscosity.
136 citations
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TL;DR: Kim et al. as mentioned in this paper used the water surface as a nearly ideal underlying support for free-standing ultra-thin films and developed a novel tensile testing method for the precise measurement of mechanical properties of the films.
Abstract: The surface of water provides an excellent environment for gliding movement, in both nature and modern technology, from surface living animals such as the water strider, to Langmuir–Blodgett films. The high surface tension of water keeps the contacting objects afloat, and its low viscosity enables almost frictionless sliding on the surface. Here we utilize the water surface as a nearly ideal underlying support for free-standing ultra-thin films and develop a novel tensile testing method for the precise measurement of mechanical properties of the films. In this method, namely, the pseudo free-standing tensile test, all specimen preparation and testing procedures are performed on the water surface, resulting in easy handling and almost frictionless sliding without specimen damage or substrate effects. We further utilize van der Waals adhesion for the damage-free gripping of an ultra-thin film specimen. Our approach can potentially be used to explore the mechanical properties of emerging two-dimensional materials. The mechanical testing of thin films is non-trivial, due to their very fine dimensions. Kim et al. use the inherent surface tension of water as a platform for the frictionless tensile testing of gold films, with a thickness as fine as 55 nm.
136 citations
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TL;DR: In this paper, the relationship between the excess Gibbs energy in the bulk phase and that in the surface phase which are used in Butler's equation for surface tension was derived for molten ionic solutions as well as molten alloys.
Abstract: The authors discuss the application of thermodynamic solution databases, which have been constructed so far to calculate thermodynamic properties and phase diagrams, to the evaluation of surface tensions of molten alloys, salt mixtures and oxide mixtures. In particular, the relationship between the excess Gibbs energy in the bulk phase and that in the surface phase which are used in Butler's equation for surface tension was derived for molten ionic solutions as well as molten alloys. In this work, the surface tensions of some liquid binary alloys, various molten salt mixtures, which mainly consist of alkali cations and halide anions, and some molten oxide mixtures, in particular binary silicate systems, were calculated and compared with experimental values.
136 citations
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TL;DR: In this paper, the effect of nanoparticles concentration and size on the surface tension of a colloidal mixture of nano-sized particles dispersed in a fluid medium with amended thermo-physical properties was investigated.
136 citations
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TL;DR: In this article, the authors used the capillary rise method to measure the room temperature surface tension of several ionic liquids, selected mainly for their high electrical conductivity, including 1-ethyl-3-methylimidazolium (EMI+), 1-butyl-3 -methyloridazolate (BMI+), and 1,3-dimethylimideamideamides (DMI+) paired with anions such as GaCl4−, FeCl4+, C(CN)3−, N(CN
136 citations