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
Citations
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Molecular-dynamics simulation of evaporation processes of fluid bridges confined in slitlike pores
TL;DR: This work studies how this equilibrium is established by diffusion processes, when a liquid is inserted into an initially empty capillary (partial or complete evaporation into vacuum), or when the volume available for the vapor phase increases.
Journal ArticleDOI
Molecular simulation evidence for solidlike adsorbate in complex carbonaceous micropore structures.
TL;DR: It is shown that the empirical concept of "pore size" is not consistent for describing adsorption in the complex solids considered here and a new concept is proposed that seeks to account for the factors that affect local adsorbate energy: local geometry, microtexture, surface atom density, and surface chemistry.
Journal ArticleDOI
Impact of polymer structure and confinement on the kinetics of Zdol 4000 bonding to amorphous‐hydrogenated carbon
TL;DR: In this article, the bonding of molecularly-thin (10 A) Zdol 4000 films to amorphous, hydrogenated carbon (CHx) was investigated as a function of the backbone structure, i.e., the ratio of the perfluoromethylene oxide (C1) to perfluoroethylene oxide monomer units in the backbone.
Journal ArticleDOI
Exploration and Exploitation of Water in Colloidal Crystals
TL;DR: Knowledge gained in the last few years about water distribution in nanoconfinements is gathered, along with how it can be controlled and the consequences it brings about to extract new or enhance existing material functionalities are gathered.
Journal ArticleDOI
Elastic Properties of Well-Defined, High-Density Poly(methyl methacrylate) Brushes Studied by Electromechanical Interferometry
TL;DR: In this paper, the elastic properties of dry polymer brushes comprising low-polydispersity poly(methyl methacrylate) (PMMA) chains with high graft densities over 0.4 chains/nm2 were investigated by means of electromechanical interferometry.
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.
Book
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.