Study on Surface Energy of Ultra-thin Film (Verification of Effective Dispersion Component Theory)
| Autor: | Katsunori Ono, Hiroshige Matsuoka, Shigehisa Fukui |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Surface (mathematics)
Materials science Condensed matter physics business.industry Mechanical Engineering Perfluoropolyether Industrial and Manufacturing Engineering Surface energy Condensed Matter::Soft Condensed Matter Contact angle Condensed Matter::Materials Science symbols.namesake Solid substrate Optics symbols Lubricant Thin film van der Waals force business |
| Zdroj: | Journal of Advanced Mechanical Design, Systems, and Manufacturing. 4:391-396 |
| ISSN: | 1881-3054 |
| DOI: | 10.1299/jamdsm.4.391 |
| Popis: | The dependences of surface energy on ultra-thin film thickness are investigated experimentally and theoretically. Langmuir-Blodgett (LB) film and perfluoropolyether (PFPE) lubricant on solid substrates are used as ultra-thin film samples. Surface energies as a function of film thickness are experimentally obtained from contact angle measurements. The theoretical equation of the dispersive component of the surface energy of ultra-thin film is derived from the corrected van der Waals pressure equation for a multilayered system proposed by the authors. The theoretical values are found to agree with the experimental values. The theoretical equation presented in this study is considered to be useful in predicting the surface energy of an ultra-thin film on a solid substrate. |
| Databáze: | OpenAIRE |
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