Title Chapter 6 Friction
Author:
, Elsevier 1981
1981
http://www.sciencedirect.com/science/article/pii/S0167892208706795
More details: Publisher Summary The friction between two solid surfaces in solid-state contact is the resistance to tangential motion of one surface over the other, whether that motion be sliding, rolling, or rubbing contact. There are two types of friction, static and dynamic. Static friction is the force required to initiate motion between two solid surfaces, or the force necessary to break the junctions that form at the interface between two solid surfaces. Dynamic friction is the friction associated with one surface sliding, rolling, or rubbing over another. Many compounds are added to conventional oils to act as extreme pressure or anti-wear additives in lubricants. There are also solid film lubricants that are applied to surfaces to reduce adhesion, friction, and wear. Many of these compounds rely on a reaction with the solid surface to provide a protective surface film. The coefficient of friction is the frictional force divided by the load applied to the two surfaces in contact.
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