Observation of Micro-Water droplets on Several Materials Surfaces and Evaluation of Wettability by Means of AFM
| Autor: | Mitsuo Kido, Naoki Morihiro, Rongguang Wang |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
endocrine system
Materials science Atomic force microscopy Mechanical Engineering technology industry and agriculture chemistry.chemical_element Polishing Nanotechnology Contamination complex mixtures eye diseases stomatognathic diseases Chromium Adsorption chemistry Distilled water Chemical engineering Mechanics of Materials General Materials Science Wetting Mica |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 69:1657-1663 |
| ISSN: | 1884-8338 0387-5008 |
| DOI: | 10.1299/kikaia.69.1657 |
| Popis: | The wetting characteristics of micro-droplets of distilled water on natural mica and pretreated (wet polishing, air oxidation and water immersion) metals surfaces were observed with an atomic force microscope (AFM) in AC non-contact mode. The micro-droplets were more stable than the macro-droplets in ambient air. The micro-wettabilities were higher than the macro-ones for all specimens and the scatter of values was large. A thin liquid layer of adsorbed water and organic contaminants was found on the chromium surface in ambient air. Micro-droplets deposited by post-wetting always occupied positions with little or none organic contaminant, which might explain the observed higher wettability for micro-droplets than macro-droplets. |
| Databáze: | OpenAIRE |
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