Development and testing of nano particulate lubricant for worm gear application

Saravanakumar, N.; Saravanan, M. L. Jothi; Barathkumar, K. E.; Kannan, Kalaiselvi; Karthikeyan, R.

doi:10.1007/s12206-019-0330-1

Cited by 20 publications

(5 citation statements)

References 18 publications

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“…The effect of TiO2 nanoparticles on the COF is shown in Figure 9b. The addition of TiO2 nanoparticles resulted in decreased values of coefficient of friction, which agreed with Saravanakumar and co-workers' findings [29]. As the concentration of nanoparticles increased, the COF decreased until the TiO2 concentration reached 1.00%, as shown in Figure 9b.…”

Section: Tribological Resultssupporting

confidence: 89%

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

et al. 2020

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In recent years, there has been growing concern regarding the use of petroleum-based lubricants. This concern has generated interest in readily biodegradable fluids such as vegetable oils. The present work evaluated the rheological and tribological characteristics of sunflower oil modified with silicon dioxide (SiO2) and titanium dioxide (TiO2) nanoparticles as lubricant additives at different concentrations. A parallel plate rheometer was used to evaluate the effects of concentration and shear rate on the shear viscosity, and the experimental data was compared with conventional models. The wear protection and friction characteristics of the oil-formulations were evaluated by conducting block-on-ring sliding tests. Surface analysis-based instruments, including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and profilometry, were used to characterize the morphology and structure of the worn surfaces. The experimental results showed that the coefficient of friction decreased with the addition of SiO2 and TiO2 nanoparticles by 77.7% and 93.7%, respectively when compared to base sunflower oil. Furthermore, the volume loss was lowered by 74.1% and 70.1%, with the addition of SiO2 and TiO2 nanoparticles, respectively. Based on the experimental results, the authors conclude that modified sunflower oil enhanced with nanoparticles has the potential for use as a good biodegradable lubricant.

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Section: Tribological Resultssupporting

confidence: 89%

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

et al. 2020

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“…From there, the COF increased to a value of 0.0546 at a 0.50wt.% concentration, and subsequently decreased up to its minimum value of 0.0257, corresponding to a concentration of 1.25 wt.% of SiO 2 nanoparticles. On the other hand, it can be observed that the addition of TiO 2 nanoparticles resulted in decreased values of coefficient of friction, this in agreement with Saravanakumar and co-workers' findings [19]. The decrease in the COF is evident at TiO 2 nanoparticle concentrations of 0.75, 1.00, and 1.25 wt.% with COF values of 0.0426, 0.0190, and 0.0426 respectively.…”

Section: Tribological Resultssupporting

confidence: 87%

Investigating the Rheological Behavior and Lubrication Performance of Grapeseed Oil Modified with SiO2 and TiO2 Nanoparticles for Industrial Applications

Ortega

2022

JOJMS

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Currently technology demands for a sustainable and more environmentally friendly lubricant. Additionally, government regulations and recent concern on the use of petroleum-based lubricants has increased research on environmentally friendly lubricants such as vegetable oils. This study investigates the rheological behavior and the lubrication performance of grapeseed oil modified with silicon dioxide (SiO 2 ) and titanium dioxide (TiO 2 ) nanoparticles as lubricant additives. A parallel plate rheometer was used to investigate the effect of concentration and shear rate on the viscosity. Block-on-ring wear tests were conducted to investigate the effect of different nanoparticle concentrations on the coefficient of friction (COF) and wear volume loss. To analyze the worn surfaces, surface analytical methods including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and profilometry were used. Additionally, a theoretical approach was used to estimate the energy consumed by friction. From the experimental results, it was found that the coefficient of friction was lowered by the addition of SiO 2 and TiO 2 nanoparticles 50% and 63% respectively, when compared to grapeseed oil without additives. Wear volume loss decreased 39% and 82% using SiO 2 and TiO 2 nanoparticles as lubricant additives, respectively. Therefore, grapeseed oil modified with nanoparticles shows potential as a lubricant candidate in industrial applications.

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“…These nanomaterials range from metals such as Cu [13] and Ag [14] and metal oxides such as CuO [15] and ZnO [16] to carbon-based nanoparticles such as carbon nanotubes CNTs, graphene [17], nanodiamonds [18], and fullerenes [19], among others. They have been used as additives in different types of lubricants ranging from mineral [20] to vegetable oils [21,22]. In the vast majority of research papers, the addition of these nanoparticles significantly improved the performance of lubricants.…”

Section: Introductionmentioning

confidence: 99%

The Performance of Carbon-Based Nanomaterials in Different Base Oils and an Oil Blend

Nasr,

Cursaru

2024

Lubricants

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Different carbon-based nanomaterials (fullerenes, graphene, SWCNTs, and SWCNT-COOH) were tested as additives in a base mineral oil, SN150; rapeseed oil (RSO); and a 50/50 by volume blend of the two using an HFRR (high-frequency reciprocating rig) tester for coefficient of friction (COF) and wear scar diameter (WSD) determinations and a four-ball tester for welding point determinations. The concentrations considered for the HFRR tests were 0.1, 0.5, 1, and 2 wt.%, while the concentration considered for the welding point tests was 0.5 wt.%. The results of the welding point tests showed that the addition of different nanoparticles made it so that welding occurred at much lower pressures compared to the pure oils. This is due to the hardness of the nanoparticles, which increases the local temperature and pressure at the contact points between them and the surfaces, causing welding to occur much sooner. The results of the HFRR tests showed a possible synergistic effect between the fullerenes and SWCNT-COOH and the oil blend, which may be attributed to possible interactions that occurred at a molecular level between the nanoparticles and the different molecules of the oil blend.

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Development and testing of nano particulate lubricant for worm gear application

Cited by 20 publications

References 18 publications

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

Investigating the Rheological Behavior and Lubrication Performance of Grapeseed Oil Modified with SiO2 and TiO2 Nanoparticles for Industrial Applications

The Performance of Carbon-Based Nanomaterials in Different Base Oils and an Oil Blend

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