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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Preparation and Characterization of Graphene Oxide Paper
Dmitriy A. Dikin,Sasha Stankovich,Eric Zimney,Richard D. Piner,Geoffrey Dommett,Guennadi Evmenenko,SonBinh T. Nguyen,Rodney S. Ruoff +7 more
TL;DR: Graphene oxide paper is reported, a free-standing carbon-based membrane material made by flow-directed assembly of individual graphene oxide sheets that outperforms many other paper-like materials in stiffness and strength.
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Phase separation in confined systems
TL;DR: A review of the current state of knowledge of phase separation and phase equilibria in porous materials can be found in this article, where the focus is on fundamental studies of simple fluids and well-characterized materials.
Journal ArticleDOI
Scratching the Surface: Fundamental Investigations of Tribology with Atomic Force Microscopy.
TL;DR: The goal of this paper is to demonstrate that AFM is capable of producing atomic-scale knowledge, and to focus upon some of the contributions of the AFM to nanotribology.
Journal ArticleDOI
Boundary slip in Newtonian liquids: a review of experimental studies
TL;DR: A review of experimental studies regarding the phenomenon of slip of Newtonian liquids at solid interfaces is provided in this article, with particular attention to the effects that factors such as surface roughness, wettability and the presence of gaseous layers might have on the measured interfacial slip.
Journal ArticleDOI
Nanofluidics: what is it and what can we expect from it?
TL;DR: In this paper, the present state of research in this field and possible directions of development are discussed, focusing on the very diverse background of nanofluidics in biology, chemistry, physics and engineering and valuable knowledge available in these disciplines.
References
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Journal ArticleDOI
Motions and relaxations of confined liquids
TL;DR: When a liquid is confined in a narrow gap, the effective shear viscosity is enhanced compared to the bulk, relaxation times are prolonged, and nonlinear responses set in at lower shear rates.
Journal ArticleDOI
Direct measurement of structural forces between two surfaces in a nonpolar liquid
TL;DR: The force as a function of separation between two molecularly smooth surfaces immersed in the liquid octamethylcyclotetrasiloxane (OMCTS) whose molecules are quasispherical of diameter ∼ 1.0 nm was measured in this article.
Journal ArticleDOI
The drainage of thin liquid films between solid surfaces
Derek Y. C. Chan,Roger G. Horn +1 more
TL;DR: In this paper, the authors measured the thickness as a function of time of liquid films as they are squeezed between molecularly smooth mica surfaces and determined the film thickness with an accuracy of 0.2 nm as they drain from ∼1 μm to a few molecular layers.
Journal ArticleDOI
On the Equilibrium Thickness of Intergranular Glass Phases in Ceramic Materials
TL;DR: In this paper, it was shown that there will exist a stable thickness for the intergranular film and that it will be of the order of 1 nm, a value commensurate with that observed experimentally in a wide range of materials.