| Autor: |
Mortagne, Caroline, Lippera, Kevin, Tordjeman, Philippe, Benzaquen, Michael, Ondarçuhu, Thierry |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Fluids 2, 102201 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevFluids.2.102201 |
| Popis: |
We present a self-contained study of the dynamics of oscillating nanomenisci anchored on nanometric topographical defects around a cylindrical nanofiber -- radius below 100 nm. Using frequency-modulation atomic force microscopy (FM-AFM), we show that the friction coefficient surges as the contact angle is decreased. We propose a theoretical model within the lubrification approximation that reproduces the experimental data and provides a comprehensive description of the dynamics of the nanomeniscus. The dissipation pattern in the vicinity of the contact line and the anchoring properties are discussed as a function of liquid and surface properties in addition to the sollicitation conditions. |
| Databáze: |
arXiv |
| Externí odkaz: |
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