Tribological properties of polyalphaolefin oil modified with nanocarbon additives

Nunn, Nicholas; Mahbooba, Zaynab; Иванов, М. Г.; Ivanov, D. M.; Brenner, Donald W.; Shenderova, Olga

doi:10.1016/j.diamond.2014.09.003

Cited by 81 publications

(45 citation statements)

References 20 publications

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“…At 20 N load, the wear volume is 67.71% less in comparison to the lubricating oil blended with CuO nanoparticles alone, whereas for 100 N load the same is reduced by 57.03%. The decrease in wear volume is due to the polishing effect of the diamond nanoparticles and subsequent protective film formation capability of the CuO nanoparticles (Nunn et al 2015;Shenderova et al 2014). The same can be observed in Fig.…”

Section: Tribological Studiessupporting

confidence: 67%

“…Few studies pertaining to the synergetic effect of nanodiamonds have been reported earlier (Nunn et al 2015). To explore the synergism of diamond nanoparticles with other nano additives, this study has been carried out.…”

Section: Resultsmentioning

confidence: 99%

“…Chou and Lee (2010) reported that the wear mechanism for steel/aluminum alloy contacts is entirely different from steel/steel contacts. However, in most of the cases, the improvement in tribological properties is due to the ball bearing effect (Wu et al 2007), mending effect (Liu et al 2004;Ç elik et al 2013), polishing effect (Nunn et al 2015) and protective film formation capabilities (Battez et al 2007;Alves et al 2016) of different nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…However, the underlying mechanism for the effectiveness of these nanoparticles could not be established due to the presence of different additives in commercial oil. Subsequent investigation was performed to explore the synergy of nanodiamonds with MoDDP in the presence of PAO (poly-alpha-olefin) base oil (Nunn et al 2015). Results obtained therein demonstrate that the polishing effect of nanodiamonds along with the film formation capability of MoDDP was the main reason for the improved frictional characteristics.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tribological investigation of diamond nanoparticles for steel/steel contacts in boundary lubrication regime

Raina

Anand

2017

Appl Nanosci

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This paper presents an investigation of nanodiamond additives (ND) in combination with copper oxide (CuO) and hexagonal boron nitride (h-BN) particles mixed in PAO (poly-alpha-olefin) oil. The experimentation was performed for a ball on disc configuration using steel/steel contacts in the boundary lubrication regime. The loads were varied from 20 to 100 N and sliding velocity was kept constant at 0.58 m/s. The wear behavior was evaluated using SEM images of the worn-out disc surfaces. EDS analysis of the samples was performed to find out the chemical content of the worn surfaces. Results obtained therein demonstrated that oil containing CuO/ND and h-BN/ND exhibited better frictional and wear characteristics. For CuO/ND containing lubricant, the maximum decrease in friction coefficient is 15.45% in comparison to the CuO oil, whereas for h-BN/ND containing additives the overall decrease is 25.45%. It was observed that the combined effect of CuO/ND and h-BN/ND due to their intrinsic characteristics led to the overall improvement in lubrication properties of the base oil.

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Section: Tribological Studiessupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tribological investigation of diamond nanoparticles for steel/steel contacts in boundary lubrication regime

Raina

Anand

2017

Appl Nanosci

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“…The five major groups of nanoparticles added to lubricant are metal, 1,2 metal oxide 3,4 metal composite, 5,6 boron-based 7,8 and carbon-based nanoparticles. [9][10][11][12][13] In general, the majority of the studies accepted that nanoparticle plays a role in improving tribological properties by forming a tribofilm that is deposited between the contact surfaces.…”

Section: Introductionmentioning

confidence: 99%

Tribological Investigation of Graphene as Lubricant Additive in Vegetable Oil

Kiu

Yusup

Soon

et al. 2017

JPS

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A Review on Thermophysical Properties for Heat Transfer Enhancement of Carbon‐Based Nanolubricant

Saufi

Mamat

2021

Adv Eng Mater

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In previous years, nanolubricants have gained attention in terms of their use as heat transfer fluids in applications such as engine cooling and air conditioning. Carbon-based nanolubricants have attracted great interest due to their superior heat transfer performance. To date, the stability of a carbon-based nanolubricant is crucial if the enhanced properties are to be retained after the fabrication process. In this context, the current research aims to review the stability and thermophysical properties of carbon-based nanolubricants. Recent works on these nanolubricants are summarized herein, including the method of preparation and improvements in their properties. The factors that affect the thermal conductivity and viscosity are also discussed, and finally, the applications of nanolubricants are described. The recent studies of nanolubricants are summarized and opportunities for further improvements in their efficiency are suggested.

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Tribological properties of polyalphaolefin oil modified with nanocarbon additives

Cited by 81 publications

References 20 publications

Tribological investigation of diamond nanoparticles for steel/steel contacts in boundary lubrication regime

Tribological investigation of diamond nanoparticles for steel/steel contacts in boundary lubrication regime

Tribological Investigation of Graphene as Lubricant Additive in Vegetable Oil

A Review on Thermophysical Properties for Heat Transfer Enhancement of Carbon‐Based Nanolubricant

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