Department Seminar of Refael Tadmor - Solid - liquid adhesion

School of Mechanical Engineering Seminar
Monday, May 9, 2022 at 14.00
Wolfson Building of Mechanical Engineering, Room 206

Solid - liquid adhesion

Prof. Rafael Tadmor

Dept. of Mechanical Engineering, Ben Gurion University, Beer Sheva, Israel

We discuss the problem of solid liquid adhesion and in particular we will focus on a tool for direct measurements of the work needed to separate a liquid from a solid. The method mimics a pendant drop that is subjected to a gravitational force that is slowly increasing until the solid−liquid contact area starts to shrink spontaneously. The work of adhesion is then calculated in analogy to Tate’s law. The values obtained are intensive (independent of drop size) and in agreement with Dupré’s theory.

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