Wettability of a surface subjected to high frequency mechanical vibrations
| Autor: | R. Galleguillos-Silva, L. Gaete-Garretón, Y. Vargas-Hernández |
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| Rok vydání: | 2015 |
| Předmět: |
Chemical substance
Acoustics and Ultrasonics Alloy Nanotechnology 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences law.invention Physics::Fluid Dynamics Inorganic Chemistry Contact angle Magazine law Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Composite material Chemistry Organic Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Condensed Matter::Soft Condensed Matter Vibration Distilled water engineering Wetting 0210 nano-technology Science technology and society |
| Zdroj: | Ultrasonics sonochemistry. 35 |
| ISSN: | 1873-2828 |
| Popis: | Ultrasonic radiation can modify some physical properties in liquid/solid interactions, such as wettability. The dependence of solid surface wettability on its vibrational state was studied. Experiments with an interface formed by distilled water deposited on a titanium alloy and surrounded by air were carried out. It is shown that it is possible to control the apparent wettability of a given liquid/solid/gas system by applying sonic-ultrasonic vibrations of controlled amplitude at the interface. The system studied is composed of a drop of distilled water deposited on a flat titanium surface in air. The contact angle was used as an indicator of apparent wettability. It is shown that the apparent wettability of a surface is linearly dependent on the peak vibration velocity and independent of the vibration frequency. Higher vibration speed lowers the contact angle and therefore causes greater surface wettability. |
| Databáze: | OpenAIRE |
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