Influence of load and speed on tribological performance of Cu nanofluids in EHL line contacts

Kumar, Avneesh; Thakre, Gananath D.; Wàňi, M.F.

doi:10.1016/j.matpr.2020.10.931

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Hence, the viscosity of the fluid decreases. Many researchers have investigated the modifiers of viscosity of nanofluid augments the lubricating properties as a steady tribological layer [18,19,20,21]. Sujith et al, ( 2019) have also studied the variation of viscosity of Al2O3 + coconut oil-based nanofluid from 303K to 343K [13].…”

Section: Viscosity and Density Measurementmentioning

confidence: 99%

Thermo-physcial Properties and Characterization of TiO2 based Nanofluid Blended with Moringa Oleifera Oil

Amsavahini

Janani

et al. 2021

Preprint

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Nanoparticle TiO2 was synthesized by the co-precipitate method and was dispersed in palm oil blended with Moringa oleifera seed oil (Enriched palm oil-EPO). Structural and compositional analysis of TiO2 nanoparticles was carried out using SEM (Scanning Electron Microscope), XRD (X-Ray Diffraction) and FTIR analysis (Fourier Transform Infrared Spectroscopy). Using the analytical method, particle dimension, crystallite size by Debye Scherrer’s equation and vibrational energy of the molecule was investigated. Palm oil was blended with synthesised Moring oil to enhance its oxidative stability. TiO2 nanoparticles were dispersed at different volume fraction in EPO to analyse the temperature dependent physical properties. Bio-degradable lubricant nature of TiO2 based nanofluid was investigated by the variation of viscosity and density with temperature (30 to 60˚C). The amphiphilic properties of fatty acids in blended oils can contribute better lubrication compared to mineral oils. Experimented viscosity and density values with temperature was fitted to a non-linear equations, and was pragmatic that quadratic equation exhibits a best fit R2 > 0.999. Theoretical value of the viscosity was predicted using Einstein, Batchelor, and Wang mathematical model and was compared with the experimental value. Brownian motion of the particle in the oil was studied through the diffusion constant, diffusion time, and Brownian velocity. The present study could be used to synthesis nanofluid with desired volume fraction, viscosities and densities, so as work as a suitable bio degradable lubricant in many industrial applications.

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Section: Viscosity and Density Measurementmentioning

confidence: 99%

Thermo-physcial Properties and Characterization of TiO2 based Nanofluid Blended with Moringa Oleifera Oil

Amsavahini

Janani

et al. 2021

Preprint

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Sliding tribological properties of nano-sized ceramic particles as oil-based lubricant additives

Wang,

Xiang

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part N:

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The present research investigated the lubricating performance of ZnO, SiO2, and WS2 nanoparticles as oil additives applied on steel frictional pairs. The study consisted of two stages. In first stage, the lubricating properties of nanofluids were examined using the various nanoparticle concentrations. It was obtained that the 3wt% ZnO, 5wt% SiO2, and 3wt% WS2 nanofluids showed the best performance. In second stage, an orthogonal test matrix was designed to understand the influences of load, sliding frequency and surface roughness on the lubricating behavior of the nanofluids. It was found that the frequency and load had the most significant effects on the friction reduction and anti-wear properties of ZnO, SiO2, and WS2 nanofluids. By using scanning electron microscopy and energy dispersive X-ray spectroscopy for potential mechanisms. It was found that the nanoparticles could be physically embedded, and adhered to the worn areas to form tribo-films resulting in improved tribological performance.

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Influence of load and speed on tribological performance of Cu nanofluids in EHL line contacts

Cited by 2 publications

References 9 publications

Thermo-physcial Properties and Characterization of TiO2 based Nanofluid Blended with Moringa Oleifera Oil

Thermo-physcial Properties and Characterization of TiO2 based Nanofluid Blended with Moringa Oleifera Oil

Sliding tribological properties of nano-sized ceramic particles as oil-based lubricant additives

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