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Interfacial Friction Control
Author(s) -
Wu Yang,
Wei Qiangbing,
Cai Meirong,
Zhou Feng
Publication year - 2015
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201400392
Subject(s) - slippage , materials science , electrolyte , adhesion , solid surface , friction coefficient , solvent , interface (matter) , coefficient of friction , nanotechnology , composite material , chemical physics , mechanical engineering , chemical engineering , chemistry , wetting , electrode , organic chemistry , sessile drop technique , engineering
This review outlines the up‐to‐date research progress on controllable interfacial friction on both solid/solid and solid/liquid surfaces. Environment‐sensitive materials at a frictional interface react to certain external stimuli and provoke changes in surface chemistry, interfacial charge, and/or topography, which then cause a change in the coefficient of friction. The external stimuli might be solvent, electrolyte, pH, temperature, light, electric potential, and magnetic field etc. In a similar way, controllable fluid–solid friction (i.e., boundary slippage versus non‐slippage) can also be achieved by reversibly generating a gas lubricating layer at the interface or by changing the fluid–solid adhesion via physicochemical methods. The author comments are presented and outlooks proposed.