Results 161 to 170 of about 472,498 (211)
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2020
The ceria (CeO2) nanoparticles were synthesized by chemical processing, due to its better control on particle size and morphology. The characterization techniques named High-Resolution Transmission Electron Microscopy (HR-TEM) and Energy Dispersive Spectroscopy (EDS) were carried out to confirm the formation of ceria nanoparticles. A uniform suspension
Jibin T. Philip +3 more
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The ceria (CeO2) nanoparticles were synthesized by chemical processing, due to its better control on particle size and morphology. The characterization techniques named High-Resolution Transmission Electron Microscopy (HR-TEM) and Energy Dispersive Spectroscopy (EDS) were carried out to confirm the formation of ceria nanoparticles. A uniform suspension
Jibin T. Philip +3 more
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Influence of alkalinity on effectiveness of additives in lithium greases
Chemistry and Technology of Fuels and Oils, 1987The present work has been aimed at studying the influence of excess alkali (LiOH) on the service properties and effectiveness of the additives* SIM (5% by weight), DF-11 (1% by weight), KINKh-2 (5% by weight), MoS= (5% by weight), and of combinations of these additives, in lithium greases.
Z. K. Chaduneli +3 more
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Tribology Transactions, 2020
The present study investigates the effect on the tribological behavior of paraffin grease incorporated with ZnO and CuO nanoparticles. ZnO nanoparticles of ∼32 nm were synthesized with a precipitation method.
S. S. Rawat +3 more
semanticscholar +1 more source
The present study investigates the effect on the tribological behavior of paraffin grease incorporated with ZnO and CuO nanoparticles. ZnO nanoparticles of ∼32 nm were synthesized with a precipitation method.
S. S. Rawat +3 more
semanticscholar +1 more source
Role of alkali in forming structure of lithium greases
Chemistry and Technology of Fuels and Oils, 1985The present work has been aimed at studying the influence of the high-temperature holding time ("hot-soak" time) and the melt cooling conditions on the individual stages of grease structure formation, depending on the content of alkali. In preparing the greases we used LiSt obtained in grease manufacture by neutralizing the calculated quantities of HSt
Z. K. Chaduneli +3 more
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Evaluation of Calixarenes as Antioxidants in Complex Lithium Grease
Chemistry Letters, 2014Abstract The thermal stability and antioxidant performance of 4-tert-butylcalix[4]arene (B4) and 4-tert-butylcalix[8]arene (B8) were investigated and compared with those of 3,5-di-tert-butyl-4-hydroxytoluene (BHT). Both B4 and B8 were superior to BHT in thermal stability. In addition, B4 and B8 also showed obvious antioxidant capacity in
Mianran Chao, Weimin Li, Xiaobo Wang
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Antiwear and extreme-pressure properties of lithium greases
Chemistry and Technology of Fuels and Oils, 19751. The antiwear properties of lithium greases without additives line up with those of the dispersion media, in the following order from poorest to best: PES-3 silicone, MS-6 mineral oil, DOS (dioctyl sebacate). 2. The replacement of lithium stearate by lithium soaps of synthetic fatty acids gives lithium greases with poorer antiwear ...
V. V. Vainshtok +5 more
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Ageing Evaluation of No.2 Lithium Lubricating Grease
Advanced Materials Research, 2013Contamination, acid number, moisture, thickness and dropping point are summarized as ageing indexes of lubricating grease. Size distribution, composition and weight of contamination which influence lubricating performance most and are used to evaluate performance of lubricating grease broadly in No.2 lithium lubricating grease which is used in main ...
Li Li +5 more
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Lubrication Science
In this study, lithium stearate and fumed silica co‐thickened grease with po‐ly(sodium‐4‐styrenesulfonate) (PSSNa) additive was synthesised and characterised for application as an automotive lubricant, including for the potential use in an electric ...
Saswat Gautam +4 more
semanticscholar +1 more source
In this study, lithium stearate and fumed silica co‐thickened grease with po‐ly(sodium‐4‐styrenesulfonate) (PSSNa) additive was synthesised and characterised for application as an automotive lubricant, including for the potential use in an electric ...
Saswat Gautam +4 more
semanticscholar +1 more source
Study of Wear on AISI E52100 Steel Using a Lithium Complex Grease and a Calcium Sulfonate Grease
2021The purpose of this work was to study the antiwear and extreme pressure properties of two synthetic greases, one of them consists of lithium complex as a thickener, it is classified in the standard ISO 6743-9 as LX and the other has calcium sulfonate as a thickener and it is classified as CS.
J. F. Márquez-Santiago +2 more
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Continuous lithium and aluminum stearate grease manufacture
Oil & Soap, 19441. Lithium and aluminum greases can be made continuously by using heating, cooling, gelling and working stages in series. Votators can be used successfully for heating, cooling and working. The entire process from slurry to finished grease takes about 20 minutes, most of which time is in the gelling section.
H. G. Houlton +4 more
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