| | |
| | |
Stat |
Members: 3667 Articles: 2'599'751 Articles rated: 2609
15 February 2025 |
|
| | | |
|
Article overview
| |
|
The Impact of Surface Geometry, Cavitation, and Condensation on Wetting Transitions: Posts and Reentrant Structures | Jack R. Panter
; Halim Kusumaatmaja
; | Date: |
1 Sep 2016 | Abstract: | The fundamental impacts of surface geometry on the stability of wetting
states, and the transitions between them are elucidated for posts and reentrant
structures in both two and three dimensions. We identify three principal
outcomes of particular importance for future surface design of liquid-repellent
surfaces. Firstly, we demonstrate and quantify how capillary condensation and
vapour cavitation affect wetting state stabilities, and the roles condensates
play in wetting transitions. Crucially, this leads to a description of the
surface structures which exhibit a suspended state in the absence of a
collapsed state. Secondly, two distinct collapse mechanisms are observed for 3D
reentrant geometries, Base Contact and Pillar Contact, which are operative at
different pillar heights. As well as morphological differences in the
penetrating liquid, each mechanism is affected differently by changes in the
contact angle with the solid. Finally, symmetry breaking is shown to be
prevalent in 2D systems, but absent in the 3D equivalents. For the 2D reentrant
geometries, three pillar heigh-dependent collapse mechanisms are shown:
asymmetric Pillar Contact and Base Contact, and a third hybrid mode. | Source: | arXiv, 1609.0287 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|