Energy Dissipation at Ultrasonically Oscillating Superhydrophobic Surface in Various Liquids

• Fujita Mitsuhiro

  Department of Biomolecular Engineering, Tokyo Institute of Technology

• Muramatsu Hiroshi

  School of Bionics, Tokyo University of Technology

• Fujihira Masamichi

  Department of Biomolecular Engineering, Tokyo Institute of Technology

Abstract

A film with a superhydrophobic rough surface was prepared on an AT-cut quartz crystal resonator (QCR). Using the QCR with the film, we measured energy dissipation at the ultrasonically oscillating superhydrophobic surface in various liquids such as water, ethanol and water–glycerol mixtures. The QCR was successfully used to determine the mode of contact of the rough surface with each liquid, i.e., either Wenzel or Cassie contact. Furthermore, it was found that the interfacial friction strongly depended on the contact mode. The interfacial friction was reduced by ca. 50% when the contact mode was the Cassie type.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 44 (9A), 6726-6730, 2005

  The Japan Society of Applied Physics

Keywords

• energy dissipation
• friction
• superhydrophobicity
• quartz crystal microbalance (QCM)
• polytetrafluoroethylene (PTFE)

Details

• CRID: 1390282681242487168
• NII Article ID: 130004766372
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.44.6726
• ISSN: 13474065
• ISSN: 00214922
• NDL BIB ID: 7438508
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7438508
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.6726
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.6726/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed