Dispersion Stability and Tribological Characteristics of TiO<inf>2</inf>/SiO<inf>2</inf> Nanocomposite-Enriched Biobased Lubricant
- Taylor and Francis Group
- Publication Type:
- Journal Article
- Tribology Transactions, 2017, 60, (4), pp. 670-680
- Issue Date:
|Dispersion Stability and Tribological Characteristics of TiO2 SiO2 Nanocomposite Enriched Biobased Lubricant.pdf||1.88 MB|
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The stable dispersion of nano-additives is highly desirable for the effective lubrication performance of nanolubricants. The compatibility of base oil with selected nano-additives is required for uniform and stable dispersion. This research evaluated the dispersion stability and tribological characteristics of nano-TiO2/SiO2 (average particle size 50 nm) as an additive in a biobased lubricant. The wear protection and friction reducing characteristics of the formulations were evaluated by four-ball extreme pressure tests and piston ring–cylinder liner sliding tests. Surface analysis tools, including scanning electron microscopy, energy-dispersive X-ray spectroscopy, and atomic force microscopy, were used to characterize the worn surfaces. Results showed that the nanolubricants demonstrated appreciable dispersion capability in the absence of a surfactant and an improvement in load-carrying capacity, antiwear behavior, and friction reduction capability.
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