Results 31 to 40 of about 472,498 (211)

The Effect of Addition of Nanoparticles, Especially ZrO2-Based, on Tribological Behavior of Lubricants

open access: yesLubricants, 2020
The aim of the paper was to discuss different effects, such as, among others, agglomeration of selected nanoparticles, particularly those from zirconia, on the tribological behavior of lubricants. The explanation of the difference between the concepts of
Adam Rylski, Krzysztof Siczek
doaj   +1 more source

Lubricant Additive Containing a Novel Nano Hybrid for improving Lithium Greases Extreme Pressure and Anti Wear Properties [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
A novel lubricating grease additive comprised of a new nanohybrid and a suitable base fluid has been proposed in this research. The addition of this nano additive (5 wt%) to the lithium grease improves 1.5 times the extreme pressure property and can ...
Mahshad Alaei, Amir Zamen
doaj   +1 more source

Tribological Properties of Al2O3 Nanoparticles as Lithium Grease Additives

open access: yesLubricants, 2021
The tribological properties of Lithium grease specimens with different concentrations of Al2O3 nanoparticles were investigated using a pin on disc apparatus under different sliding speeds and normal loads. Results showed that Al2O3 nanoparticles enhanced
Ahmed Nabhan   +4 more
doaj   +1 more source

EFFECT OF TALC AS SOLID LUBRICANT DISPERSING LITHIUM GREASE IN REDUCING FRICTION COEFFICIENT AND WEAR IN DUSTY ENVIRONMENT [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2012
In cement factories abrasive contaminants cause severe wear of moving surfaces leading to rapid failure of the machine elements. In the present study, talc used as solid lubricants dispersed in lithium grease.
A. M. Samy
doaj   +1 more source

Research Progress and Application of Conductive Grease

open access: yesJournal of Harbin University of Science and Technology, 2022
Conductive grease is a new type of electrical material, which plays a vital role in power transmission and transformation systems. Applying conductive grease in the electrical connection can effectively reduce the contact resistance, and play an anti ...
HE Li-juan   +5 more
doaj   +1 more source

Preparation and Characterization of Lithium Grease Using 9, 10-dioxystearic Acid

open access: yesChemical Engineering Transactions, 2018
This paper aims to find a desirable new thickener for producing lithium grease. To this end, a lithium grease was prepared using self-made 9,10-dihydroxystearic acid (DHSA) as the thickener.
Cheng Siyuan   +4 more
doaj   +1 more source

Tribological Behavior of Novel CNTs-Based Lubricant Grease in Steady-State and Fretting Sliding Conditions

open access: yesLubricants, 2021
The tribological behavior of novel 7.5 wt% carbon nanotube-based lubricant greases in PAO (polyalphaolefin) oil with and without 1.0 wt% MoS2, together with several other commercial greases such as calcium, lithium, were studied.
Adolfo Senatore   +3 more
doaj   +1 more source

Modified Ni Nanoparticles as Additives in Various Greases: Assessment of Comparative Performance Potential

open access: yesLubricants, 2022
China’s rapid industrial development requires more energy consumption based on non-renewable energy resources. The energy consumption caused by unnecessary friction accounts for about 4.5% of the GDP in China.
Jiabei Wang   +3 more
doaj   +1 more source

Effects of CuO, TiO2 and graphite microparticles on the heat transfer properties of greases

open access: yesEngineering Science and Technology, an International Journal, 2022
Heavy machinery operating in outdoor environments is exposed to both solar radiation and intensive load-bearing during operation. The long operating life of these machines and their components is enabled by the greases used in their bearings. The thermal
Gokhan Gokdemir   +4 more
doaj   +1 more source

EFFECT OF MAGNETIC FIELD ON FRICTION COEFFICIENT DISPLAYED BY ROLLING BEARINGS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2011
The effect of magnetic field and electric current on the friction coefficient displayed by  rolling bearing greased by lithium grease dispersed by solid lubricants such as graphite, molybdenum disulphide, talc and polymeric particles is investigated.
S. Abdel-Sattar, A. Alahmady, W. Y. Ali
doaj   +1 more source

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