Results 11 to 20 of about 5,456,955 (188)

Grease-lubricated tribological contacts – Influence of graphite, graphene oxide and reduced graphene oxide as lubricating additives in lithium complex (LiX)- and polypropylene (PP)-thickened greases

open access: yesWear, 2021
Two types of thickener systems, lithium complex (LiX) and polypropylene (PP), were chosen to evaluate graphite, graphene oxide (GO) and reduced graphene oxide (rGO) as grease additives at a concentration of 0.1 wt%. To enhance the additive dispersibility,
Elin Larsson   +4 more
semanticscholar   +2 more sources

Observation of Grease Fluidity in a Ball Bearing Using Neutron Imaging Technology

open access: yesTribology Online, 2021
The grease fluidity and migration inside a ball bearing has been visualized non-destructively by using a neutron imaging technology. It has been clarified that a lithium (Li) complex grease with lower torque lubricates in the channeling state and that a ...
Kazumi Sakai   +4 more
doaj   +1 more source

Grease [PDF]

open access: yes, 2022
Everybody has made use of grease in their daily lives. The word “grease” originates from the early Latin word “crassus,” meaning fat. For our purposes, in this Special Issue, we will be focusing on lubricating grease, for publication in the eponymous ...

core   +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

Evaluating Grease Degradation through Contact Angle Approach

open access: yesLubricants, 2021
Grease is highly susceptible to degradation due to regular usage and the severity of the operating conditions. Degradation can negatively impact the performance of grease-lubricated machinery, demanding frequent maintenance to avoid premature failure of ...
Michael M. Khonsari   +3 more
doaj   +1 more source

In-Operando FTIR Study to Investigate the Effect of Varying Lithium Salts on Solid Electrolyte Interface (SEI) Evolution in Lithium Metal Batteries. [PDF]

open access: yesAdv Sci (Weinh)
A clear correlation between electrolyte salt chemistry and Solid Electrolyte Interface (SEI) performance in lithium metal batteries is established using in operando FTIR spectroscopy. This study shows that LiTFSI instantaneously forms a robust, inorganic organic hybrid SEI (LiF, Li3N, Li2O, ROCO2Li, ROLi) that minimizes overpotential, while less ...
Rahman S   +3 more
europepmc   +2 more sources

Effects of Contamination on Selected Rheological and Tribological Properties of Lubricating Greases Working in Underground Mines

open access: yesLubricants, 2023
This study examines the effect of mining pollutants and wear products on the rheological and tribological properties of a lubricating grease working in the microclimate of the Polkowice-Sieroszowice mine belonging to the KGHM Polska Miedź Group ...
Maciej Paszkowski   +2 more
doaj   +1 more source

Mechanism of Formation of Heterogeneous Dispersed Phase of Greases with Participation of Nanosized Additives and its Influence on Properties of Lubricants

open access: yesМеханика машин, механизмов и материалов, 2020
It is shown that in the case of the formation of the heterogeneous structure of the dispersed phase (DP) of greases, which includes the soap component in the form of a complex salt of high molecular weight and low molecular weight acids and nanosized ...
Viktor I. Zhornik   +2 more
doaj   +1 more source

Effects of Erucamide and N-phenyl-α-naphthylamine on the Friction and Torque Behaviors of Grease on Roller Bearings

open access: yesLubricants, 2023
To evaluate the impact of various proportions of erucamide and N-phenyl-α-naphthylamine on grease’s tribological performance for roller bearings, lithium complex grease (LCG) and polyurea grease (PG) were prepared with erucamide and N-phenyl-α ...
Qingchun Liu   +3 more
doaj   +1 more source

Studies with Rheological Behavior of Composite Lithium-Based Magnetorheological Grease

open access: yes, 2021
Magnetorheological (MR) grease has advantages of the anti-settlement behavior and excellent sealing property compared with conventional MR materials.
Hua Yan   +3 more
core   +1 more source

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