Chromatographic and mass spectrometric techniques for the investigation of the tribostability of soap-based greases

Sosulina, L. N.; Skryabina, T. G.; Klimov, K. I.; Nikonorov, E. M.

doi:10.1007/bf00726848

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“…This is due to the absence of microtechniques for assessing quantitatively and qualitatively the changes in lubricant individual components in the friction zone. Due to minority of grease amounts placed in the bearing (sometimes, several milligram), it proved appropriate to use a combination of research and analytical microtechniques developed at the All-Russia Scientific and Research Institute of Petroleum Products VNII NP [43]: high-temperature fractionation in vacuum, thermolysis, thin-layer chromatography, optic spectroscopy, mass spectrometry, and thermal analysis. Their combination allows one to follow the qualitative changes in most initial components of lubricants and assess the qualitative composition of products formed during friction by analyzing very small samples (from 10 -3 to 10 -6 g) of the grease [23].…”

Section: Methods Of Qualitative Estimation Of Tribochemical Stability mentioning

confidence: 99%

Performance of lubricants in the rolling friction zone and kinetics of their tribochemical transformations

Mel'nikov

2005

Prot Met

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There are two viewpoints on tribology: (1) an independent science that occupies a certain niche in physical chemistry, thermodynamics, and mechanics of interacting bodies and (2) a technology aimed to enhance the reliability and service life of machine elements in contact during relative motion. In any case, this requires the knowledge of physicochemical processes within the real contact zone of interacting bodies, i.e., in the lubricant itself and at its phase boundaries. This predetermines the importance of studying not only tribology, which is recognized for a long time, but also the tribochemistry of lubricant materials. In this study, we systematically analyze the mechanism and kinetics of tribochemical transformations of lubricant materials (oils and greases) in the rolling friction zone and the main directions of their consumption, which determine the break of metal bonds in the structural material of bearings. Based on the proposed kinetic mechanism, one can predict the depth of tribochemical processes and the service life of friction units with accuracy tolerable for practice.

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Section: Methods Of Qualitative Estimation Of Tribochemical Stability mentioning

confidence: 99%

Performance of lubricants in the rolling friction zone and kinetics of their tribochemical transformations

Mel'nikov

2005

Prot Met

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show abstract

Chromatographic and mass spectrometric techniques for the investigation of the tribostability of soap-based greases

Cited by 1 publication

References 1 publication

Performance of lubricants in the rolling friction zone and kinetics of their tribochemical transformations

Performance of lubricants in the rolling friction zone and kinetics of their tribochemical transformations

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