Bulk-cusp microstructure for controllable multi-directional liquid spreading
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Abstract
Controllable wetting of liquid on solid surface is meaningful for advanced science and engineering. Current researches about controllable liquid spreading are generally limited to unidirectional modes, while achieving multi-directional spreading on microstructured surfaces remains challenging. Herein, we propose a novel type of bulk-cusp microstructure, exhibiting 0 to 4-directional spreading of droplet without external energy input. This behavior occurs not only under single-drop deposition but also under continuous liquid injection. The bulk structure is assumed to have cross or square shape, implying relatively high and low coverage ratio of the precursor film, respectively. Owing to the drag effect of the…
Citation impact
5
total citations
- FWCI
- 85.27
- Percentile
- 100%
- References
- 57
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Authors
6Topics & keywords
Topics
Keywords
- Microstructure
- Wetting
- Decoupling (probability)
- Lubrication
- Drag
- Capillary action
- Evaporation
- Coupling (piping)
UN Sustainable Development Goals
- Affordable and clean energy
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