RSC - Faraday Discuss. latest articles

Complex frictional analysis of self-lubricant W-S-C/Cr coating

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00003B, Paper

Tomas Polcar, Fredrik Gustavsson, Thomas Thersleff, Staffan Jacobson, Albano Cavaleiro
Transition metal dichalcogenides belong to one of the most developed class of materials for solid lubrication. However, one of the main drawbacks of most of the self-lubricating coatings is their...
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Synovial Fluid Lubrication of Artificial Joints: Protein Film Formation and Composition

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00129B, Paper

Jingyun Fan, Connor Myant, Richard Underwood, Philippa Cann
Despite design improvements wear of artificial implants remains a serious health issue particularly for Metal-on-Metal hips where the formation of metallic wear debris has been linked to adverse tissue response....
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The mechanics of nanometre-sale molecular contacts

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00133K, Paper

Katerina Busuttil, Nikolaos Nikogeorgos, Zhenyu Zhang, Mark Geoghegan, Christopher A Hunter, Graham Leggett
The adhesive interactions and friction-load relationships have been investigated in liquid mixtures. For hydrogen bond-forming monolayers in acetone-heptane mixtures a linear friction-load relationship is observed at compositions that yield extensive...
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Why can TiAlCrSiYN-based adaptive coatings deliver exceptional performance under extreme frictional conditions?

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00131D, Paper

Ben Beake
Adaptive TiAlCrSiYN-based coatings show promise under the extreme tribological conditions of dry ultra-high-speed (500-700 m/min) machining of hardened tool steels. During high speed machining, protective sapphire and mullite-like tribo-films form...
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Imaging the effects of the antisymmetric stretch excitation of CH4 in the reaction with F atom

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD20004J, Paper

Hiroshi Kawamata, Weiqing Zhang, Kopin Liu
One quantum excitation of methane to CH4(v3=1) was found to prohibit the CH bond rupture, thus slowing down the total reactivity toward F-atom, and when the reaction does occur, only...
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Semi-Deterministic chemo-mechanical model of boundary lubrication

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00132B, Paper

Joel Andersson, Roland Larsson, Andreas Almqvist, Mattias Grahn, Ichiro Minami
A model for tribofilm growth is developed. The model is used in combination with numerical contact mechanics tools to enable evaluation of combined effects of chemistry and contact mechanics. The...
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Cell Friction

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00130F, Paper

Thomas Angelini, Alison C Dunn, Juan Manuel Uruena, Daniel John Dickrell, David L Burris, Greg Sawyer
Cells sense and respond to their environment. Mechanotransduction is the process by which mechanical forces, stress, and strains are converted into biochemical signals that control cell behavior. In recent decades...
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Mechanism of ultra low friction of multilayer graphene studied by coarse-grained molecular simulation

Faraday Discuss., 2011, Accepted Manuscript
DOI: 10.1039/C2FD00119E, Paper

Hitoshi Washizu, Seiji Kajita, Toshihide Ohmori, Mamoru Tohyama, Noriaki Nishino, Hiroshi Teranishi, Atsushi Suzuki
Coarse-grained Metropolis Monte Carlo Brownian Dynamics simulations are used to clarify the ultralow friction mechanism of a transfer film of multilayered graphene sheets. Each circular graphene sheet consists of 400...
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On the three-term kinetic friction law in nanotribological systems

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00120A, Paper

Andras Vernes
A post-processing method, which maps the punctiform atoms in molecular dynamics (MD) simulations of boundary lubrication onto smoothed particles, is used to estimate the asperity contact area defined by the...
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Dynamic surface microstructural changes during tribological contact that determine the wear behaviour of hip prostheses; metals and ceramics

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00002D, Paper

W. Mark Rainforth, Peng Zeng, Le Ma, Akemi Nogiwa Valdez, Todd Stewart
It is often the dynamic microstructural changes induced by tribological contact that determine whether or not a material exhibits good wear resistance. It is well known that the mechanical properties...
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Physio-chemical hydrodynamic mechanism underlying the formation of thin adsorbed boundary films

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00118G, Paper

William W.F. Chong, Mircea Teodorescu, Homer Rahnejat
Formation of low shear strength surface-adhered thin films mitigates excessive friction in mixed or boundary regimes of lubrication. Tribo-films are formed as a consequence of molecular chemical reaction with the...
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Tribology and Energy Efficiency: From Molecules to Lubricated Contacts to Complete Machines

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00122E, Paper

Ian Taylor
The impact of lubricants on energy efficiency is considered. Molecular details of base oils used in lubricants can have a great impact on the lubricant's physical properties which will affect...
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Sliding friction at soft micro-patterned elastomer contacts

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00121G, Paper

Elise Degrandi-Contraires, Christophe Poulard, Frederic Restagno, Liliane Leger
In this paper, we present an experimental study of the friction between a smooth elastomer lens and an elastomer substrate micropatterned with hexagonal arrays of cylindrical pillars. Depending on the...
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Anticorrosion Imidazolium Ionic Liquids as the Additive in Poly(ethylene glycol) for Steel/ Cu-Sn alloy Contacts

Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00124A, Paper

Feng Zhou, meirong cai, Yongmin Liang, Weimin Liu
3-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-1-methyl-1H-imidazolium hexaﬂuorophosphates ([BTAMIM][PF6]) ionic liquids (ILs) were evaluated as friction reduction antiwear (AW) and anticorrosion additive in poly(ethylene glycol) (PEG) for steel/Cu-Sn alloy contacts at 100 [degree]C. The physical properties...
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