Results 101 to 110 of about 2,081 (223)

Impact of Soot on Internal Combustion Engine Lubrication—Oil Condition Monitoring, Tribological Properties, and Surface Chemistry

open access: yesLubricants
In the study at hand, a systemic investigation regarding the tribochemical effects of crankcase soot is presented. Sooted oils were generated via an engine dynamometer test. Both conventional as well as advanced oil condition monitoring methods indicated
Adam Agocs   +3 more
doaj   +1 more source

FAP- Anion Ionic Liquids Used in the Lubrication of a Steel–Steel Contact [PDF]

open access: yes, 2013
This study compares the tribological behavior of two ionic liquids ([BMP][FAP] and [(NEMM)MOE][FAP]) used as oil additive for the lubrication of a steel–steel contact. Friction and wear experiments were performed using a HFRR test machine.
A Hernández Battez   +19 more
core   +1 more source

Enhanced Growth of ZDDP-Based Tribofilms on Laser-Interference Patterned Cylinder Roller Bearings

open access: yesLubricants, 2017
Laser surface texturing has been successfully applied in the past to various machine elements in order to improve their tribological performance. In this study, direct laser interference patterning was used to produce periodic cross-like surface patterns
Chia-Jui Hsu   +3 more
doaj   +1 more source

Mechanisms of ZDDP—An Update

open access: yesTribology Letters
Abstract This paper describes how research over the last 20 years has advanced our understanding of the mechanisms of action of ZDDP, especially with respect to tribofilm formation. We now know that ZDDP tribofilm formation is promoted by applied shear stress and this explains many of the features of these films.
openaire   +1 more source

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

open access: yesFriction, 2017
To enhance the lubricating and extreme pressure (EP) performance of base oils, two types of oil-soluble ionic liquids (ILs) with similar anion albeit dissimilar cations were synthesized. The physical properties of the prepared ILs were measured.
Guowei Huang   +5 more
doaj   +1 more source

Design of novel experimental techniques to investigate the formation of nanoparticle-based tribofilms [PDF]

open access: yes, 2006
Nano-engineered lubricant additives such as organically-active nanoparticles of molybdenum disulphide (Hybrid-milled MoS2) are becoming increasingly popular in the fight against harsh friction and wear that occurs during boundary-layer lubrication.
Thompson, Corey
core   +1 more source

Applications of surface analysis and surface theory in tribology [PDF]

open access: yes
Tribology, the study of adhesion, friction and wear of materials is a complex field which requires a knowledge of solid state physics, surface physics, chemistry, material science and mechanical engineering.
Ferrante, John
core   +1 more source

Transient processes of MoS₂ tribofilm formation under boundary lubrication [PDF]

open access: yes, 2016
A tribochemistry study that involves the application of Raman spectroscopy surface analysis has been undertaken to understand the time-dependent tribochemical reactions, for lubrication by Molybdenum dialkyl-dithiocarbamate (MoDTC) occurring in boundary ...
Morina, A, Neville, A, Rai, Y
core   +1 more source

Microstructural and Chemical Characterization of the Tribolayer Formation in Highly Loaded Cylindrical Roller Thrust Bearings

open access: yesLubricants, 2016
Zinc dithiophosphates (ZDDP) have been widely applied in automobile industry for over 70 years as a lubricant additive for wear protection. Tribolayers have been described as blue- and brown-colored layers on surfaces observed by microscopical ...
Carsten Gachot   +6 more
doaj   +1 more source

Tribological Behavior of Anodized Aluminum Oxide (AAO) Under the Addition of PAO6 Lubrication with Nano-Alumina

open access: yesLubricants
Anodizing can generate porous wear-resistant layers, which can act as reservoirs for gradually releasing lubricants. Studies on the formation of zinc dialkyl dithiophosphate (ZDDP) tribofilms in non-ferrous metals are relatively rare. Furthermore, adding
Marina C. Vasco   +2 more
doaj   +1 more source

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