Wetting transitions on textured hydrophilic surfaces

  title={Wetting transitions on textured hydrophilic surfaces},
  author={Chieko Ishino and Ko Okumura},
  journal={The European Physical Journal E},
  • C. Ishino, K. Okumura
  • Published 23 April 2008
  • Materials Science, Medicine
  • The European Physical Journal E
Abstract.We consider the quasi-static energy of a drop on a textured hydrophilic surface, with taking the contact angle hysteresis (CAH) into account. We demonstrate how energy varies as the contact state changes from the Cassie state (in which air is trapped at the drop bottom) to the Wenzel state (in which liquid fills the texture at the drop bottom) assuming that the latter state nucleates from the center of the drop bottom. When the textured substrate is hydrophilic enough to allow… 
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