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Reducing friction is strongly and endlessly demanded in a variety of engineering applications for saving energy and improving machine performance. Meanwhile, high friction is beneficial to many applications such as braking, traction driving and friction damping. It is desired that sliding friction can be controlled actively so that the magnitude of friction coefficient of a tribosystem in service...
A complete understanding of the mechanism of boundary lubrication is a goal that scientists have been striving to achieve over the past century. Although this complicated process has been far from fully revealed, a general picture and its influencing factors have been elucidated, not only at the macroscopic scale but also at the nanoscale, which is sufficiently clear to provide effective instructions...
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