Results 31 to 40 of about 2,950 (201)

Velocity dependence of sliding friction on a crystalline surface

open access: yesBeilstein Journal of Nanotechnology, 2017
We introduce and study a minimal 1D model for the simulation of dynamic friction and dissipation at the atomic scale. This model consists of a point mass (slider) that moves over and interacts weakly with a linear chain of particles interconnected by ...
Christian Apostoli   +8 more
doaj   +1 more source

Rigorous derivation of diffusion equation for submonolayer lubricant film

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In magnetic hard disk drives, it is important to secure the stability and durability of head–disk interface in relation to a submonolayer lubricant film because the spacing between a head and lubricant surface has to be reduced to ~0.5 nm to achieve a ...
Kyosuke ONO
doaj   +1 more source

Are Ionic Liquids Good Boundary Lubricants? A Molecular Perspective

open access: yesLubricants, 2018
The application of ionic liquids as lubricants has attracted substantial interest over the past decade and this has produced a rich literature. The aim of this review is to summarize the main findings about frictional behavior of ionic liquids in the ...
Romain Lhermerout   +2 more
doaj   +1 more source

Structural lubricity under ambient conditions. [PDF]

open access: yes, 2016
Despite its fundamental importance, physical mechanisms that govern friction are poorly understood. While a state of ultra-low friction, termed structural lubricity, is expected for any clean, atomically flat interface consisting of two different ...
Baykara, Mehmet Z   +3 more
core   +1 more source

Multifractal analysis of stress time series during ultrathin lubricant film melting [PDF]

open access: yes, 2010
Melting of an ultrathin lubricant film confined between two atomically flat surfaces is we studied using the rheological model for viscoelastic matter approximation. Phase diagram with domains, corresponding to sliding, dry, and two types of $stick-slip$
ALEXEI V. KHOMENKO   +12 more
core   +2 more sources

Superlubricity - a new perspective on an established paradigm

open access: yes, 2012
Superlubricity is a frictionless tribological state sometimes occurring in nanoscale material junctions. It is often associated with incommensurate surface lattice structures appearing at the interface.
G. A. Tomlinson   +6 more
core   +1 more source

Insight Into the Superlubricity and Self-Assembly of Liquid Crystals

open access: yesFrontiers in Chemistry, 2021
Liquid crystals are promising molecular materials in the application of lubrication. Herein, the microscale solid superlubricity is accomplished by the construction of uniform and ordered self-assembly of several liquid crystals.
Shanchao Tan   +12 more
doaj   +1 more source

Ground state wavefunction of the quantum Frenkel-Kontorova model

open access: yes, 1999
The wavefunction of an incommensurate ground state for a one-dimensional discrete sine-Gordon model -- the Frenkel-Kontorova (FK) model -- at zero temperature is calculated by the quantum Monte Carlo method. It is found that the ground state wavefunction
Aubry S.   +13 more
core   +1 more source

Magnetic non-contact friction from domain wall dynamics actuated by oscillatory mechanical motion [PDF]

open access: yes, 2019
Magnetic friction is a form of non-contact friction arising from the dissipation of energy in a magnet due to spin reorientation in a magnetic field.
Laurson, Lasse, Rissanen, Ilari
core   +2 more sources

Observation of Aubry transition in finite atom chains via friction

open access: yes, 2015
The highly nonlinear many-body physics of a chain of mutually interacting atoms in contact with a periodic substrate gives rise to complex static and dynamical phenomena, such as structural phase transitions and friction.
Bylinskii, Alexei   +3 more
core   +1 more source

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