Hierarchical roughness optimization for biomimetic superhydrophobic surfaces.

@article{Nosonovsky2007HierarchicalRO,
  title={Hierarchical roughness optimization for biomimetic superhydrophobic surfaces.},
  author={Michael Nosonovsky and Bharat Bhushan},
  journal={Ultramicroscopy},
  year={2007},
  volume={107 10-11},
  pages={969-79}
}
Superhydrophobic surfaces should have high contact angles (CA) with water and low contact angle hysteresis (CAH). High CA may be achieved by increasing surface roughness, while in order to have low CAH, superhydrophobic surfaces should be able to form a stable composite interface with air pockets between solid and liquid. Capillary waves, nanodroplets condensation, hydrophilic spots due to chemical surface inhomogeneity, and liquid pressure can destroy the composite interface. These… CONTINUE READING

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