Results 11 to 20 of about 2,250,140 (346)

A Boundary Lubrication Model and Experimental Study Considering ZDDP Tribofilms on Reciprocating Friction Pairs

open access: yesTribology letter, 2022
Boundary lubrication state may dominate the friction pairs operating under severe conditions, yet its mechanism is not clearly understood and related numerical models are still lacking. A boundary lubrication model considering zinc dialkyldithiophosphate
Bugao Lyu   +3 more
semanticscholar   +1 more source

Research progress of cartilage lubrication and biomimetic cartilage lubrication materials

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Human joints move thousands of times a day. The articular cartilage plays a vital role in joints’ protection. If there is dysfunction in cartilage lubrication, cartilage cannot maintain its normal function.
Haoming An   +17 more
doaj   +1 more source

Lipids and lipid-mixtures in boundary layers: from hydration lubrication to osteoarthritis [PDF]

open access: yesCurrent Opinion in Colloid & Interface Science, 2021
The hydration layer surrounding the phosphocholine headgroups of single-component phosphatidylcholine (PC) lipids, or of lipid-mixtures, assembled at an interface greatly modifies the interfacial properties and interactions. As water molecules within the
Yifeng Cao, J. Klein
semanticscholar   +1 more source

Mixed-lubrication analysis of misaligned journal bearing considering turbulence and cavitation

open access: yesAIP Advances, 2022
By integrating the average flow equation and Ng–Pan turbulence model using the boundary condition of mass conserving [Jakobsson-Floberg-Olsson (JFO)], a mixed lubrication model for misaligned bearing was established considering the effects of turbulence ...
Xintao Song, Wei Wu, Shihua Yuan
doaj   +1 more source

Ultra-Low Boundary Lubrication Friction by Three-Way Synergistic Interactions among Ionic Liquid, Friction Modifier, and Dispersant.

open access: yesACS Applied Materials and Interfaces, 2020
Interactions among anti-wear additives (AWs), friction modifiers (FMs), and dispersant in a lubricating oil are critical for tribological performance. This study investigates compatibilities of three oil-soluble ionic liquids (ILs, candidate AWs) with a ...
Weimin Li   +7 more
semanticscholar   +1 more source

Effects of surface nanostructure on boundary lubrication using molecular dynamics

open access: yesNanotechnology and Precision Engineering, 2021
Molecular dynamics simulations are used to study the boundary lubrication behaviors of squalane lubricant between two iron wall structures during shearing at different pressures and temperatures.
Ling Pan, Hui Yu, Shiping Lu, Guobin Lin
doaj   +1 more source

Study on the enhanced tribological performance for titanium alloys by PEG oil/Zn-nanoparticles

open access: yesMaterials Research Express, 2020
This work developed an effective and promising lubricant containing Zn nanoparticles and polyethylene glycol (PEG) base oil to deal with the tough problem of boundary lubrication for steel/Ti6Al4V.
Xin Quan   +3 more
doaj   +1 more source

The effect of boundary slip on elastohydrodynamic lubrication [PDF]

open access: yes, 2014
Pressure-induced boundary slip in elastohydrodynamic lubrication, on application of an oleophobic coating, is measured by photobleached-fluorescence imaging velocimetry.
Ponjavic, A, Wong, JSS
core   +1 more source

Numerical Wear Modeling in the Mixed and Boundary Lubrication Regime

open access: yesLubricants, 2022
The increasing use of low-viscosity lubricants in order to reduce the friction in machine elements such as rolling bearings is leading to increased operation in the mixed or boundary lubrication regime.
Andreas Winkler   +2 more
doaj   +1 more source

Interfacial structure and boundary lubrication of a dicationic ionic liquid. [PDF]

open access: yesLangmuir, 2019
We report measurements of the normal surface forces and friction forces between two mica surfaces separated by a nano-film of dicationic ionic liquid using a Surface Force Balance.
C. Perez-Martinez, S. Perkin
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy