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Frictional shear stress of ZnO nanowires on natural and pyrolytic graphite substrates
Springer Science and Business Media LLC - Tập 10 - Trang 2059-2068 - 2022
The friction behaviour of ZnO nanowires on natural graphite (NG) and highly oriented pyrolytic graphite (HOPG) substrates was tested in ambient conditions by use of optical microscopy based nanomanipulation. Nanowires on the step-free and waviness-free NG substrate exhibit a diameter-independent nominal frictional shear stress of 0.48 MPa, and this provides a benchmark for studying how the surface...... hiện toàn bộ
Influence of a carbon-based tribofilm induced by the friction temperature on the tribological properties of impregnated graphite sliding against a cemented carbideAbstract Impregnated graphite has attracted considerable attention and has been widely used as an ideal friction material in many fields. However, the influence of the friction temperature on its tribological properties has not been clearly studied; furthermore, the evolution mechanism of transferred tribofilm is unknown. In this study, the tribological properties o... ... hiện toàn bộ
Springer Science and Business Media LLC - - 2021
Damage due to rolling in total knee replacement—The influence of tractive force
Springer Science and Business Media LLC - Tập 1 - Trang 178-185 - 2013
The femoral condyles of a knee prosthesis articulate with a combination of rolling and sliding on the tibial polyethylene plateau. Little is known about potential polyethylene damage due to rolling motion. Since rolling does not exclude the presence of tangential surface loads, this study sought to investigate the influence of tractive rolling on the wear of polyethylene. A “wheel-on-flat” apparat...... hiện toàn bộ
Inorganic nanomaterial lubricant additives for base fluids, to improve tribological performance: Recent developmentsAbstract In this paper, we review recent research developments regarding the tribological performances of a series of inorganic nano-additives in lubricating fluids. First, we examine several basic types of inorganic nanomaterials, including metallic nanoparticles, metal oxides, carbon nanomaterials, and “other” nanomaterials. More specifically, the metallic nanopar... ... hiện toàn bộ
Springer Science and Business Media LLC - - 2022
Erratum to: Lithium-based ionic liquids as novel lubricant additives for multiply alkylated cyclopentanes (MACs)
Springer Science and Business Media LLC - Tập 2 - Trang 392-392 - 2014
Rapid solution for analysis of nonlinear fluid film force and dynamic behavior of a tilting-pad journal bearing-rotor system with turbulent and thermal effects
Springer Science and Business Media LLC - Tập 8 - Trang 343-359 - 2019
To analyze the nonlinear dynamics of a tilting-pad journal bearing (TPJB)-rotor system with high accuracy and speed, the database method (DM) is modified to rapidly determine the nonlinear fluid film force (NFFF) of a TPJB while considering turbulent and thermal effects. A high-accuracy, large-capacity NFFF database for a single pad is constructed by numerically solving the turbulent adiabatic hyd...... hiện toàn bộ
Cavitation erosion resistance of 316L stainless steel fabricated using selective laser melting
Springer Science and Business Media LLC - Tập 9 - Trang 1580-1598 - 2020
Cavitation erosion degrades the performance and reliability of hydraulic machinery. Selective laser melting (SLM) is a type of metal additive manufacturing technology that can fabricate metal parts directly and provide lightweight design in various industrial applications. However, the cavitation erosion behaviors of SLM-fabricated parts have rarely been studied. In this study, SLM 316L stainless ...... hiện toàn bộ
Molecular dynamics simulation of the Stribeck curve: Boundary lubrication, mixed lubrication, and hydrodynamic lubrication on the atomistic level
Springer Science and Business Media LLC - Tập 11 - Trang 2342-2366 - 2023
Lubricated contact processes are studied using classical molecular dynamics simulations for determining the entire range of the Stribeck curve. Therefore, the lateral movement of two solid bodies at different gap height are studied. In each simulation, a rigid asperity is moved at constant height above a flat iron surface in a lubricating fluid. Both methane and decane are considered as lubricants...... hiện toàn bộ
Characterization of airborne wear debris produced by brake pads pressed against HVOF-coated discs
Springer Science and Business Media LLC - Tập 8 - Trang 421-432 - 2019
A significant fraction of the non-exhaust particulate matter emissions from vehicular traffic comprises fine particles from the wear debris of brake pads and discs. Recent studies have shown that these emissions can be consistently reduced by using wear resistant disc coatings. This study thoroughly analyses the debris produced by a low-met brake pad, which is dyno-bench tested against both cast i...... hiện toàn bộ
Self-lubrication of tribologically-induced oxidation during dry reciprocating sliding of aged Ti-Ni51.5 at% alloy
Springer Science and Business Media LLC - Tập 9 - Trang 1038-1049 - 2020
The tribological behaviors of Ti-Ni51.5 at% alloy strengthened by finely dispersed Ni4Ti3 particles in reciprocating sliding against GCr15, Al2O3, and ZrO2 at room temperature were studied. Interestingly, the coefficient of friction (COF) suffered a sheer drop (from 0.9 to 0.2) when the aged alloy slid against GCr15 at a frequency of 20 Hz under a 20 N load without lubrication. However, severe-mil...... hiện toàn bộ
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