Topic
Sessile drop technique
About: Sessile drop technique is a research topic. Over the lifetime, 2827 publications have been published within this topic receiving 68943 citations.
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TL;DR: At any given lung volume in the range between 70% and 40% total lung capacity the authors found equal values for theAlveolar surface tension regardless of alveolar size and location, and compared surface tension in alveoli of differing sizes and location.
166 citations
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TL;DR: In this article, the authors investigated the kinetics of wetting in the reactive pure aluminium/vitreous carbon (Cv) system by the sessile drop technique in high vacuum and found that the curve showing the radius of the metal drop base R as a function of time t consisted of a central part where the radial spreading of the drop is a linear function and two extremal parts where significant deviations from linearity are observed.
163 citations
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TL;DR: The ordering of predicted bond energies of the interfaces, ceramics, and metals seems consistent with monotonic and fatigue fracture experiments, and computed works of adhesion agree reasonably well with sessile drop experimental values.
Abstract: We have determined the relative stability of stoichiometric, oxygen-rich, and aluminum-rich $\mathrm{Al}/\mathrm{Al}{}_{2}\mathrm{O}{}_{3}$ and $\mathrm{Ag}/\mathrm{Al}{}_{2}\mathrm{O}{}_{3}$ interfaces from first principles. Stable structures vary significantly with oxygen chemical potentials. Computed works of adhesion agree reasonably well with sessile drop experimental values, including correlation with measured oxygen chemisorption effects on Ag. The ordering of predicted bond energies of the interfaces, ceramics, and metals seems consistent with monotonic and fatigue fracture experiments.
161 citations
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TL;DR: In this article, a nonlinear diffusion equation for the liquid shape is derived from mass conservation and Poiseuille flow conditions and a similarity transformation for this nonlinear equation is obtained and the resulting ordinary differential equation is solved numerically for appropriate boundary conditions.
Abstract: The problem of capillary-driven flow in a V-shaped surface groove is addressed. A nonlinear diffusion equation for the liquid shape is derived from mass conservation and Poiseuille flow conditions. A similarity transformation for this nonlinear equation is obtained and the resulting ordinary differential equation is solved numerically for appropriate boundary conditions. It is shown that the position of the wetting front is proportional to (Dt)½ where D is a diffusion coefficient proportional to the ratio of the liquid-vapour surface tension to viscosity and the groove depth, and a function of the contact angle and the groove angle. For flow into the groove from a sessile drop source it is shown that the groove angle must be greater than the contact angle. Certain arbitrarily shaped grooves are also addressed.
161 citations
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TL;DR: A systematic difference between contact angles measured with particles and on planar surfaces was observed, and detachment forces were slightly higher than predicted from flotation theory.
160 citations