May 29, 2012
Friction Explanation Found
Friction is a key phenomenon in applied physics, whose origin has been studied for centuries. Until now, it has been understood that mechanical wear-resistance and fluid lubrication affect friction, but the fundamental origin of sliding friction has been unknown. Dr. Lasse Makkonen, Principal Scientist at VTT Technical Research Centre of Finland, has now presented an explanation for the origin of sliding friction between solid objects. According to his theory, the amount of friction depends on the surface energy of the materials in question.
Friction has a substantial effect on many everyday phenomena, such as energy consumption. Makkonen's model is the first to enable quantitative calculation of the friction coefficient of materials.
Makkonen's theory on sliding friction was published in the journal AIP Advances of the American Institute of Physics. The research was funded by the Academy of Finland and the Jenny and Antti Wihuri Foundation.
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