Measuring real contact area during friction


04Oct2017 14:00 - 15:00

PhD defence ceremony

Friction occurs when two objects, hands for example, come into contact. The current consensus is that both frictional and normal force are proportional to the ‘real contact area’. Surface roughness prevents surfaces from coming into full contact – the real contact area is simply the fraction of the apparent contact area in which the two surfaces are in molecular contact. Bart Weber introduces a new technique to measure the real contact area that makes use of molecules that light up when confined in a contact.

B.A. Weber, Sliding Friction: From Microscopic Contacts to Amontons’ Law.


Prof. D. Bonn


Prof. A.M. Brouwer


  • Agnietenkapel

    Oudezijds Voorburgwal 229 - 231 | 1012 EZ Amsterdam
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This event is open to the public.

Published by  University of Amsterdam