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Synovial Fluid Lubrication of Artificial Joints: Protein Film Formation and Composition

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00129B, PaperJingyun 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00133K, PaperKaterina 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?

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00131D, PaperBen 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD20004J, PaperHiroshi 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00132B, PaperJoel 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00130F, PaperThomas 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

9 February, 2012 - 05:54
Faraday Discuss., 2011, Accepted Manuscript
DOI: 10.1039/C2FD00119E, PaperHitoshi 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00120A, PaperAndras 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00002D, PaperW. 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00118G, PaperWilliam 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00122E, PaperIan 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00121G, PaperElise 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

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00124A, PaperFeng 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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The origin of anti-wear chemitry of ZDDP

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00126H, PaperJean-Michel Martin
Molecular Dynamics has been used to simulate the anti-wear chemistry of zinc dialkyl dithiophosphate (ZDDP). The model simulates the digestion of abrasive particles into the zinc polyphosphate glass. The main...
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Predictive modelling of fatigue failure in concentrated lubricated contacts

9 February, 2012 - 05:54
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00116K, PaperPwt Evans, Ray Snidle, Michael Bryant, Kayri Sharif
Reducing frictional losses in response to the energy agenda will require use of less viscous lubricants causing hydrodynamically-lubricated bearings to operate with thinner films leading to "mixed lubrication" conditions in...
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Does ultra-mild wear play any role in dry friction applications, such as automotive braking?

7 February, 2012 - 05:17
Faraday Discuss., 2012, Accepted Manuscript
DOI: 10.1039/C2FD00117A, PaperWerner Osterle, Andrey Ivanovitch Dmitriev, Heinz Kloss
Nanostructured third body films and/or storage of wear debris at the surfaces of the first bodies are deemed as prerequisites of sliding under ultra-mild wear conditions. Since such features were...
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Hydration lubrication: exploring a new paradigm

7 February, 2012 - 05:17
Faraday Discuss., 2011, Accepted Manuscript
DOI: 10.1039/C2FD00127F, PaperJacob Klein
Lubrication by hydration shells that surround and are firmly attached to charges in water, and yet are highly fluid, provide a new mode for extreme reduction of friction in aqueous...
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Polyelectrolyte Brushes: Novel Stable Lubrication System in Aqueous Environment

20 January, 2012 - 00:54
Faraday Discuss., 2011, Accepted Manuscript
DOI: 10.1039/C2FD00123C, PaperMotoyasu Kobayashi, Atsushi Takahara, Masami Terada
Surface-initiated controlled radical copolymerizations of 2-dimethylaminoethyl methacrylate (DMAEMA), 2-(methacryloyloxy)ethylphosphorylcholine (MPC), 2-(methacryloyloxy)ethyltrimethylammonium chloride) (MTAC), and 3-sulfopropyl methacrylatepotassium salt (SPMK) were carried out on a silicon wafer and glass ball to prepare...
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Development of highly efficient supramolecular CO2 reduction photocatalysts with high turnover frequency and durability

20 January, 2012 - 00:54
Faraday Discuss., 2012, Advance Article
DOI: 10.1039/C1FD00091H, PaperYusuke Tamaki, Katsuhiro Watanabe, Kazuhide Koike, Haruo Inoue, Tatsuki Morimoto, Osamu Ishitani
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Artificial photosynthesis for solar fuels

18 January, 2012 - 00:17
Faraday Discuss., 2012, Advance Article
DOI: 10.1039/C1FD00113B, PaperStenbjorn Styring
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