| Autor: |
Jin, Panlin, Zhao, Kexin, Blin, Zoé, Allais, Malou, Mouterde, Timothée, Quéré, David |
| Předmět: |
|
| Zdroj: |
Journal of Chemical Physics; 5/28/2023, Vol. 158 Issue 20, p1-5, 5p |
| Abstrakt: |
The spectacular nature of non-wetting drops mainly arises from their extreme mobility, and quick-silver, for instance, was named after this property. There are two ways to make water non-wetting, and they both rely on texture: either we can roughen a hydrophobic solid, which makes drops looking like pearls, or we can texture the liquid with a hydrophobic powder that "isolates" the resulting marble from its substrate. We observe, here, races between pearls and marbles, and report two effects: (1) the static adhesion of the two objects is different in nature, which we interpret as a consequence of the way they meet their substrates; (2) when they move, pearls are generally quicker than marbles, which might arise from the dissimilarity of the liquid/air interface between these two kinds of globules. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
