Now showing items 1-10 of 1273
Influence of experimental variables on the measure of contact angle in metals using the sessile drop method
The sessile drop method is an easy and fast method used to measure the contact angle between solids and liquids. The value of the contact angle is used in surface characterization, in particular the wettability of solid ...
Minimal surfaces in S(3) with constant contact angle
(SPRINGER WIEN, 2009)
We provide a characterization of the Clifford Torus in S(3) via moving frames and contact structure equations. More precisely, we prove that minimal surfaces in S(3) with constant contact angle must be the Clifford Torus. ...
Wettability alteration of internal surfaces of pipelines for use in the transportation of heavy oil via core-flow
(Elsevier Science BvAmsterdamHolanda, 2006)
SESSILE DROP CONTACT ANGLE METHOD
Existing methods for determining the contact angle as a measure of the water repellency of soils are either indirect, or cumbersome and time-consuming. Our objective was to develop a new method that is simpler than the ...
Wetting behaviour of silicon nitride ceramics by Ti-Cu alloys
(ELSEVIER SCI LTD, 2008)
The wetting of Ti-Cu alloys on Si3N4 was analyzed by the sessile drop method, using an imaging system with a CCD camera during the heating under argon flow. The contact angle was measured as a function of temperature and ...
Effects of aging on chlorinated plasma polymers
Thin films deposited from propanol-chloroform-argon mixtures by plasma enhanced chemical vapor deposition at different partial pressures of chloroform in the feed, CCl, were characterized after two years of aging and their ...
Drops with non-circular footprints
(American Institute of Physics, 2016-04)
In this paper we study the morphology of drops formed on partially wetting substrates, whose footprint is not circular. These drops are consequence of the breakup processes occurring in thin films when anisotropic contact ...
Superhydrophobic polyethylcyanoacrylate coatings. Contact area with water measured by Raman spectral images, contact angle and Cassie-Baxter model
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2012)
Procedure to measure contact angles in fine divided solidsProcedimiento para medir ángulos de contacto en sólidos partículados finos.
(Pereira : Universidad Tecnológica de Pereira, 2007)
El ángulo de contacto es una propiedad superficial de los sólidos que cuantifica su tendencia a la hidrofobicidad como parámetro importante para analizar los mecanismos de interacción entre las fases sólida y líquida que ...