Tribology Letters

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Rheology of an Ionic Liquid with Variable Carreau Exponent: A Full Picture by Molecular Simulation with Experimental Contribution
Tribology Letters - Tập 64 - Trang 1-12 - 2016
Nicolas Voeltzel, Philippe Vergne, Nicolas Fillot, Nathalie Bouscharain, Laurent Joly
The rheological behavior of an ionic liquid was investigated by means of molecular dynamics simulations with experimental contribution, under conditions close to those found in the elastohydrodynamic and the very-thin film lubrication regimes. The molecular model was applied to nearly 200 temperature–pressure–shear rate cases, without any parameter adjustment. Experiments were conducted on a rheo...... hiện toàn bộ
Effect of Mechanical Properties on Cavitation Erosion Resistance in γ → α′ Phase Transformable Fe–Cr–C–Mn Alloys
Tribology Letters - Tập 57 - Trang 1-5 - 2015
Gyeong Su Shin, Jae Yong Yun, Myung Chul Park, Seon Jin Kim
The effect of mechanical properties on cavitation erosion resistance was investigated for γ → α′ phase transformable Fe–Cr–C–5Mn alloys. When comparing Fe–8Cr–0.7C–5Mn to Fe–16Cr–0.7C–5Mn, the volume fraction of transformed α′-martensite decreased with increasing Cr due to the decrement of the stacking fault energy. In previous study, cavitation erosion resistance increased with increasing volume ...... hiện toàn bộ
Friction and Lubrication of Eye/Lens/Lid Interface: The Effect of Lubricant and Contact Lens Material
Tribology Letters - Tập 71 - Trang 1-18 - 2023
David Nečas, Vlastimil Kulíšek, Petr Štěpán, František Ondreáš, Pavel Čípek, Gloria Huerta-Angeles, Martin Vrbka
Irritation of the eye in the case of contact lens users may imply dry eye syndrome (DES), commonly treated by eye drops. The paper focuses on measuring the friction coefficient with the simultaneous observation of lubricating film formation of the simulated eye/lens/lid interface. The experiments are performed in a pin-on-plate setup under the linear reciprocal motion. The contact is lubricated by...... hiện toàn bộ
Erratum to: On the Correlation Between Mechanical Degradation of Lubricating Grease and Entropy
Tribology Letters - - 2015
Asghar Rezasoltani, M. M. Khonsari
Characterization of Surface Topography from Small Images
Tribology Letters - Tập 61 Số 1 - 2016
Marcin Wolski, Paweł Podsiadło, Gwidon Stachowiak
Shear-Induced Surface-to-Bulk Transport at Room Temperature in a Sliding Metal–Metal Interface
Tribology Letters - Tập 41 - Trang 257-261 - 2010
Octavio J. Furlong, Brendan P. Miller, Wilfred T. Tysoe
Predictions from molecular dynamics (MD) simulations, that sliding at a metal–metal interface causes vortices in the near-surface region that transport atoms from the surface into the subsurface region, is tested experimentally. This is accomplished by rubbing a methyl thiolate overlayer grown on a clean copper foil by exposure to dimethyl disulfide at room temperature. Repeatedly rubbing a 1.27 ×...... hiện toàn bộ
Microstructure and Tribology of Spark Plasma Sintered Fe–Cr–B Metamorphic Alloy Powder
Tribology Letters - Tập 44 Số 2 - Trang 269-278 - 2011
Ahmad A. Sorour, Holger W. Strauss, Richard R. Chromik, Mathieu Brochu
A Quantitative Measurement of Wall Shear Stress Using Electric Capacity Sensing of Nematic Liquid Crystal Coating
Tribology Letters - - 2013
Songpeng Zhang, Xiangjun Zhang, Yu Tian, Yonggang Meng
The measurement of wall shear stress (WSS) still remains a challenge in many fields such as fluid hydrodynamics, microfluidics, or biomechanics. The nematic liquid crystal coating (LCC) is a prospective technique to measure WSS due to its global measurement capability, high resolution, and non-intrusive nature. But its current application based on the optical observation is severely limited by the...... hiện toàn bộ
Effect of Counterface Material on Dry Sliding Wear of PEEK–PTFE Composites
Tribology Letters - - 2023
H. S. Khare, E. A. Anders
The addition of polyetheretherketone (PEEK) filler to polytetrafluoroethylene (PTFE) is known to result in an orders-of-magnitude decrease in dry sliding wear of PTFE. Unlike similar ultra-low wear PTFE composites, PEEK as a filler is particularly effective since ultra-low wear of PEEK–PTFE is insensitive to environmental moisture. Mechanisms of low wear in PEEK–PTFE, i.e., formation of tenacious ...... hiện toàn bộ
Macroscopic Friction Coefficient Measurements on Living Endothelial Cells
Tribology Letters - Tập 27 - Trang 233-238 - 2007
Alison C. Dunn, Toral D. Zaveri, Benjamin G. Keselowsky, W. Gregory Sawyer
Arterial stent deployment by balloon or self-expandable structure introduces shear forces and radial forces that can damage or remove the endothelial cell layer. These factors can subsequently cause failure by restenosis or endothelial leaks. These conditions can be exacerbated by pulsatile blood flow and arterial asymmetry, which can cause migration or displacement. In mechanical or finite-elemen...... hiện toàn bộ
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