Journal ArticleDOI
Confinement-induced phase transitions in simple liquids.
Jacob Klein,Eugenia Kumacheva +1 more
TLDR
The liquid-to-solid transition of a simple model liquid confined between two surfaces was studied as a function of surface separation and the rigidity of the confined films increased reversibly by at least seven orders of magnitude.Abstract:
The liquid-to-solid transition of a simple model liquid confined between two surfaces was studied as a function of surface separation. From large surface separations (more than 1000 angstroms) down to a separation corresponding to seven molecular layers, the confined films displayed a liquid-like shear viscosity. When the surface separation was further decreased by a single molecular spacing, the films underwent an abrupt, reversible transition to a solid. At the transition, the rigidity of the confined films (quantified in terms of an "effective viscosity") increased reversibly by at least seven orders of magnitude.read more
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Book ChapterDOI
Science of Water at Nanoscale
Sungjin Chang,Wonho Jhe +1 more
TL;DR: In this paper, a water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds, and it exhibits a number of anomalous properties that arise from the structure of water molecules binding to each other by hydrogen bonds.
Journal ArticleDOI
Atomistic simulation of size-dependent heat capacity of liquid in molecular scale confinement at different temperatures
TL;DR: In this article, an enhancement of heat capacity of nanoconfined liquid was reported using equilibrium molecular dynamics simulations using the Lennard-Jones type solid-liquid molecular model, where liquid molecules are confined in between two solid surfaces with separation distance varying from 0.6 to 17.55 nm and temperature 100 K to 140 K.
Book ChapterDOI
Exploration of molecular behaviors in liquid superlubricity
Liran Ma,Jianbin Luo +1 more
TL;DR: In this paper, a set of real-time spectroscopic approaches involving nanoscale vertical resolution and millisecond time resolution were developed for the online detection and observation of the superlubricity films, including the molecular structure, orientation of molecules near the solid surface, and the order or degree of the lubricant molecules.
Book ChapterDOI
Effect of Electrostatic Interactions on Frictional Forces in Electrolytes
Leonid Daikhin,Michael Urbakh +1 more
TL;DR: In this article, a theoretical description of frictional phenomena in nanoscale layers of electrolyte solutions embedded between two plates, one of which is externally driven, is presented. But the authors do not consider the effect of non-uniform charge distributions on the plates, which leads to a space-dependent frictional force which enters into the equation of motion for the top driven plate.
Journal ArticleDOI
Extended Tomlinson Model for Rheological Response
TL;DR: In this article, the authors investigate the response of a confined harmonic chain to an external harmonic driving force and show that for higher amplitudes the system exhibits a nonlinear behavior and an apparent shear thinning.
References
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Journal ArticleDOI
Surface energy and the contact of elastic solids
TL;DR: In this paper, the influence of surface energy on the contact between elastic solids is discussed and an analytical model for its effect upon the contact size and the force of adhesion between two lightly loaded spherical solid surfaces is presented.
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The friction and lubrication of solids
Frank Philip Bowden,David Tabor +1 more
TL;DR: Tabor and Bowden as mentioned in this paper reviewed the many advances made in this field during the past 36 years and outlined the achievements of Frank Philip Bowden, and reviewed the behavior of non-metals, especially elastomers; elastohydrodynamic lubrication; and the wear of sliding surfaces.
Journal ArticleDOI
Slow viscous motion of a sphere parallel to a plane wall—I Motion through a quiescent fluid
TL;DR: Asymptotic solutions of the Stokes equations are derived for both the translational and rotational motions of a sphere parallel to a plane wall bounding a semi-infinite, quiescent, viscous fluid in the limit where the gap width tends to zero as discussed by the authors.
Journal ArticleDOI
Physics of the Granular State
TL;DR: The generation of analogies between the physics found in a simple sandpile and that found in complicated microscopic systems, such as flux motion in superconductors or spin glasses, has prompted a number of new theories and to a new era of experimentation on granular systems.