Results 151 to 160 of about 5,456,955 (188)
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Tribology Letters, 2011
The aim of this study was to examine the tribological behavior of amorphous overbased calcium sulfonate (AOBCS) and crystalline overbased calcium sulfonate (COBCS, transformed from the AOBCS) as additives in lithium complex grease. The transformation product of the calcium carbonate polymorph from AOBCS was calcite, as determined by Fourier transform ...
Gaiqing Zhao
exaly +3 more sources
The aim of this study was to examine the tribological behavior of amorphous overbased calcium sulfonate (AOBCS) and crystalline overbased calcium sulfonate (COBCS, transformed from the AOBCS) as additives in lithium complex grease. The transformation product of the calcium carbonate polymorph from AOBCS was calcite, as determined by Fourier transform ...
Gaiqing Zhao
exaly +3 more sources
Kinetic analysis of the model oxidation reaction of synthetic-based lithium complex grease
Petroleum Chemistry, 2009The kinetics of the main oxidation reactions of lithium complex grease based on a blend of poly-α-olefin oil with a pentaerythritol fatty acid ester were studied in the initiated oxidation and autooxidation modes. The specifics of the kinetic behavior of the lubricant during oxidation were shown.
L. V. Zheleznyi +2 more
exaly +3 more sources
Lubrication Science, 2022
AbstractPolyaniline/molybdenum disulfide (PANI/MoS2) composites doped with hydrochloric acid were synthesised by in situ polymerisation and characterised by Fourier transform infrared spectrometer, thermogravimetric analysis and scanning electron microscope (SEM).
Xin Feng +3 more
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AbstractPolyaniline/molybdenum disulfide (PANI/MoS2) composites doped with hydrochloric acid were synthesised by in situ polymerisation and characterised by Fourier transform infrared spectrometer, thermogravimetric analysis and scanning electron microscope (SEM).
Xin Feng +3 more
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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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TiO2 and CeO2 nanoparticles as lithium complex grease additives for enhanced lubricity
Industrial Lubrication and TribologyPurpose This paper aims to improve the tribological properties of lithium complex greases using nanoparticles to investigate the tribological behavior of single additives (nano-TiO2 or nano-CeO2) and composite additives (nano-TiO2–CeO2) in lithium ...
Zhi-Cai Du +6 more
exaly +2 more sources
Rheological properties of lithium, lithium complex, and sodium greases
Journal of Synthetic Lubrication: Research, Development and Application of Synthetic Lubricants and Functional Fluids, 1993AbstractThe rheological properties of two lithium, two lithium complex, and two sodium greases, all with the most common NLGI grade two, have been investigated. The greases are based on a mineral and a synthetic oil. The apparatus used was a cone‐and‐plate rheometer and an impacting‐ball apparatus.The impacting‐ball apparatus used a steel ball, which ...
E Höglund
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Regulating performance characteristics of lithium complex greases via dibasic acids
Lubrication Science, 2020AbstractThickener as an important ingredient affects the performance characteristics of lubricating grease. Here, seven lithium complex greases (LCGs) were prepared by saponification of 12‐OH stearic acid and low molecular weight dibasic acids (including adipic acid, sebacic acid, phthalic acid, dodecanedioic acid, and the combination of sebacic acid ...
Xiaoqiang Fan, Wen Li, Minhao Zhu
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Research on Mutual Synergy of Antiwear Additives in Lithium Complex Grease
Tribology Transactions, 2016ABSTRACTIn recent years, with the enhancement of environment awareness, there has been a progressive reduction in permitted phosphorus and sulfur levels in lubricants. Sulfur and phosphorus are the most important elements of antiwear additives. Because of the reaction between additives, less mass of additives may have the same wear reducing properties ...
Wei Yu +3 more
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Influence of dispersion medium on properties of complex lithium greases
Chemistry and Technology of Fuels and Oils, 1983This article investigates the properties of complex lithium (cLi) greases prepared by thickening various dispersion media, differing in hydrocarbon composition, with cLi soap (10% by weight). Distillate and residual oils produced in the USSR were used as the dispersion media.
G I Cherednichenko
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Dependency of Lithium Complex Grease on the Size of hBN Particles for Enhanced Performance
Tribology Letters, 2023Nikhil Kumar +2 more
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