Results 21 to 30 of about 752 (165)

Correlation between Tribofilm Formation and Friction Coefficient in Continuously Variable Transmission at the Initial Stage of Rubbing

open access: yesTribology Online, 2019
To improve the transmission efficiency of a continuously variable transmission (CVT) system, it is effective to form a tribofilm with higher friction coefficient.
Ayako Omura   +8 more
doaj   +1 more source

Influence of Artificially Altered Engine Oil on Tribofilm Formation and Wear Behaviour of Grey Cast Cylinder Liners

open access: yesLubricants, 2023
This work investigates the influence of altered engine oil on the tribological performance, focusing in particular on wear and interconnected tribofilm formation.
Martin Jech   +4 more
doaj   +1 more source

The Role of Solid Lubricants for Brake Friction Materials

open access: yesLubricants, 2016
This review article comprises of three parts. Firstly, reports of brake manufacturers on the beneficial impact of solid lubricants for pad formulations are surveyed.
Werner Österle, Andrey I. Dmitriev
doaj   +1 more source

Transient Nanoscale Tribofilm Growth: Analytical Prediction and Measurement [PDF]

open access: yesApplied Sciences, 2021
A new method for the simultaneous in situ measurement and characterisation of molybdenum-based tribofilms is presented, based on lateral force microscopy. The simultaneity of measurements is crucial for a fundamental understanding of the tribochemical phenomena.
Michael Leighton   +2 more
openaire   +3 more sources

The Effect of Temperature on Lubrication Property with MoDTC-Containning Lubricant

open access: yesTribology Online, 2018
The effect of temperature on the lubricity of molybdenum dithiocarbamate (MoDTC) was investigated by a ball on disk tribometer with lubricant oil containing MoDTC and calcium sulfonate (CaSU) at temperatures of 25˚C, 40˚C, 60˚C and 80˚C.
Masanori Komaba   +4 more
doaj   +1 more source

Characterization of ZDDP and ionic liquid tribofilms on non-metallic coatings providing insights of tribofilm formation mechanisms [PDF]

open access: yesWear, 2015
Abstract Lubricant anti-wear additives are known to chemically interact with metallic surfaces to form a self-healing, wear-protection tribofilm. Their interactions with non-metallic surfaces are however less understood. Here we report recent findings on whether and how a zinc dialkyldithiophosphate (ZDDP) and a phosphonium–organophosphate ionic ...
Qu, Jun   +4 more
openaire   +1 more source

Effect of ZnDTP triboflim's morphology on friction behaviors of DLC coatings: Tribofilm characterization by 3D scanning electron microscope observation

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
ZnDTP antiwear additive for lubricating oil is known to absorb strongly on sliding surfaces in boundary lubricated tribosystems, forming a tribofilm, which is able to reduce the wear of involved surfaces.
Kouami Auxence Melardot ABOUA   +7 more
doaj   +1 more source

Tribological properties of polyimide composites reinforced with fibers rubbing against Al2O3

open access: yesFriction, 2020
Reinforcing fillers are of great importance in tribological performance and tribofilm formation of polymeric composites. In this study, the tribological properties of aramid particle (AP) and short carbon fiber (SCF) reinforced polyimide (PI) composites ...
Huimin Qi   +4 more
doaj   +1 more source

Friction and Wear Properties of Hard Coatings on Steel Surfaces under Lubrication with a Fully Formulated Oil with a Mo Additive

open access: yesTribology Online, 2021
When various sliding components of combustion engines protected with hard coatings are slid with automotive lubricants, unexpected interfacial phenomena may occur because typical automotive lubricants have been formulated with additives suitable for ...
Kiichi Nakagome   +4 more
doaj   +1 more source

Tribological synergy between classical ZDDP and innovative MoS2 and MoO3 nanotube additives at elevated temperatures; pp. 178-184 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2019
One of the most important drawbacks limiting the application of MoS2 nanotubes (NTs) as an oil additive is their temperature sensitivity. Recent studies showed that MoS2 NTs can be substituted by MoO3 NTs in conjunction with S-containing lubricants by ...
Agnieszka Maria Tomala   +2 more
doaj   +1 more source

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