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In this study, an oil droplet passing through an elastohydrodynamic lubrication contact is observed via interferometry, and the effects of droplet size, entrainment speed, load, and slide/roll ratio (SRR) are studied. The results show that the surface area of the droplet is enlarged because of the squeeze spread and capillary force at the inlet region, which influence the film growth. With a large...
Phosphorous and sulfur L- and K-edge X-ray absorption near edge structure (XANES) spectra were recorded to characterize the surface chemistry of the tribofilms derived from a commercial zinc dialkyldithiophosphate (ZDDP) and its blends with overbased calcium and magnesium salicylate detergents. The results show that the chemical structure of the tribofilms generated from the mixture of ZDDP and detergents...
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