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Tribology Letters
Erschienen in: Tribology Letters 3/2021

01.09.2021 | Original Paper

A Study on Microstructure, Friction and Rheology of Four Lithium Greases Formulated with Four Different Base Oils

verfasst von: Enhui Zhang, Weimin Li, Gaiqing Zhao, Zhe Wang, Xiaobo Wang

Erschienen in: Tribology Letters | Ausgabe 3/2021

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Abstract

Four lithium greases were prepared with paraffinic oil, naphthenic oil, poly-α-olefin (PAO) and polyol ester (PE), respectively. Their physiochemical, tribological and rheological properties were investigated. It was found that naphthenic oil-based grease exhibited the best colloidal stability. SEM analysis revealed that lithium fibers in PE-based grease showed a relatively flat network compared to the three-dimensional entangled structure of the other three greases. Tribological performance of greases differed from their corresponding base oils, which might be attributed to the different microstructure of lithium soap fibers. Three-dimensional entangled structure was more suitable for friction-reducing than flat network structure. Moreover, noise test revealed that naphthenic oil-based grease was suitable for low-noise bearing lubrication. This study provided fundamental guidance for the selection of base oil which is beneficial for the development of high-performance grease products.
Vorheriger Artikel Experiment and Simulation of Erosion Behavior and Deformation Characteristics in Al6061-T6 Beam Due to Rhomboid Particle Impacts
Nächster Artikel Electric Field Effect on Friction Coefficient of Diamond-Like Carbon Film Heated by Laser Irradiation

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Metadaten
Titel
A Study on Microstructure, Friction and Rheology of Four Lithium Greases Formulated with Four Different Base Oils
verfasst von
Enhui Zhang
Weimin Li
Gaiqing Zhao
Zhe Wang
Xiaobo Wang
Publikationsdatum
01.09.2021
Verlag
Springer US
Erschienen in
Tribology Letters / Ausgabe 3/2021
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-021-01469-z

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