Surface Engineering, Tailored Wettability, and Applications
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]
KeywordsContact Angle Superhydrophobic Surface Critical Heat Flux Boiling Heat Transfer Apparent Contact Angle
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- 14.Bonner, R.W.: 2010 14th International Heat Transfer Conference 221–226 (American Society of Mechanical Engineers)Google Scholar
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