Encyclopedia of Nanotechnology

Living Edition
| Editors: Bharat Bhushan

Surface Engineering, Tailored Wettability, and Applications

  • Solomon Adera
  • Jiansheng Feng
  • Evelyn N. WangEmail author
Living reference work entry
DOI: https://doi.org/10.1007/978-94-007-6178-0_100967-1



Wettability is a fundamental property of solid surfaces, which plays a role in all aspects of our lives. It is characterized by the contact angle that a liquid droplet makes when deposited on a solid surface. The contact angle is the angle subtended by the liquid-vapor and the solid-liquid interface from the liquid side at the three-phase contact line where the three phases (solid, liquid, and vapor) meet. The Young contact angle is the angle that a droplet makes when it comes in contact with an atomically flat, chemically homogeneous, nonreactive, rigid, and insoluble surface (Fig. 1). This angle is typically referred to as the intrinsic or equilibrium or static contact angle ( θ) and can be obtained by balancing the interfacial forces at the three-phase contact line as given by the classical Young equation [ 1]


Contact Angle Superhydrophobic Surface Critical Heat Flux Boiling Heat Transfer Apparent Contact Angle 
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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Solomon Adera
    • 1
  • Jiansheng Feng
    • 1
  • Evelyn N. Wang
    • 1
    Email author
  1. 1.Device Research Laboratory, Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeUSA