Friction control in thin-film lubrication
Article Abstract:
Research was conducted to examine friction control in thin-film lubrication. A new method for controlling and reducing friction in thin-film boundary lubricated junctions is investigated using molecular dynamics simulations. The mechanism involves the coupling of small amplitude directional mechanical oscillations of the confining boundaries to the molecular degrees of freedom of the sheared interfacial lubricating fluid. A generalized rate and state model is introduced, yielding results in close correspondence with those predicted by the atomistic simulations.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Structure and thermodynamics of self-assembled monolayers on gold nanocrystallites
Article Abstract:
A study was conducted to analyze the equilibrium structures and thermodynamic characteristics of dodecanethiol self-assembled monolayers on small and large gold nanocrystallites using molecular dynamics simulations. Several interactions were included in the molecular dynamics, including united-atom model potentials and sulfur-to-gold interatomic Morse potential. Results indicated that the disordering of the monolayers starts at the bundles' surfaces.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Chain length effects on frictional behavior of confined ultrathin films of linear alkanes under shear
Article Abstract:
The impact of molecular chain length on the frictional behavior of confined thin liquid films under shear was examined through molecular dynamics simulations. The films were first compressed and then one of the wall that consists of linear alkanes with 6-80 chain length and confines the films was moved at a constant velocity at two different pressures. Results indicated that the frictional behavior differs according to the appled pressure.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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