Effect of Cr2AlC nanolamella addition on tribological properties of 5W-30 engine oil

Davis, Deepak; Shah, Azeezuddin Farhaan; Panigrahi, Bharat B.; Singh, Sheela

doi:10.1016/j.apsusc.2019.07.097

Cited by 15 publications

(11 citation statements)

References 36 publications

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“…In an experimental study, h-BN nanoparticles were used with SAE 5w-30 at a concentration of 0.5 wt%. The results of the tribological test using a four-ball tribotester showed that the COF was reduced by 10% at this concentration [ 51 ]. In another study, h-BN nanoparticles were used as an additive to evaluate their effects on the friction performance of polyalphaolefin (PAO).…”

Section: Nanoparticles In Synthetic Lubricantsmentioning

confidence: 99%

“…The results of the tribological tests using a four-ball configuration showed that when 0.5 wt% of MoS 2 was used as an additive, the COF was minimal. When compared to oil with no nanoparticle additive, the COF was reduced by almost 15% at this optimum concentration [ 51 ]. MoS 2 nanoparticles positively affected the friction performance of molding oil when used in a piston skirt-liner tribometer.…”

Section: Nanoparticles In Synthetic Lubricantsmentioning

confidence: 99%

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A Review of Friction Performance of Lubricants with Nano Additives

et al. 2021

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It has been established in literature that the addition of nanoparticles to lubricants at an optimum concentration results in a lower coefficient of friction compared to lubricants with no nanoparticle additives. This review paper shows a comparison of different lubricants based on the COF (coefficient of friction) with nanoadditives. The effect of the addition of nanoparticles on the friction coefficient was analyzed for both synthetic and biolubricants separately. The limitations associated with the use of nanoparticles are explained. The mechanisms responsible for a reduction in friction when nanoparticles are used as an additive are also discussed. Various nanoparticles that have been most widely used in recent years showed good performance within lubricants, including CuO (copper oxide), MoS2 (molybdenum disulfide), and TiO2 (titanium dioxide). The paper also indicates some research gaps that need to be addressed.

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Section: Nanoparticles In Synthetic Lubricantsmentioning

confidence: 99%

Section: Nanoparticles In Synthetic Lubricantsmentioning

confidence: 99%

A Review of Friction Performance of Lubricants with Nano Additives

et al. 2021

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“…In automotive engines, the high frictional energy loss between the tribo-pairs especially at the piston rings and cylinder liner surface contact was estimated to be from 20 to 30% of its total power loss [1]. This matter has led researchers to investigate various additives as possible components of conventional lubricating oil.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Tribological and Rheological Behaviour of Hybrid Nanolubricants for Applications in Internal Combustion Engines

et al. 2023

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In this study, the improvement in SAE 10W-40 engine oil tribological performance after the addition of magnesium oxide (MgO) nanoadditive and two different phosphonium-based ionic liquids (ILs) was investigated. Besides, the rheological behaviour of MgO-based nanolubricant and IL-based hybrid nanolubricants at the temperature range from 293.15 to 363.15 K was studied. The nanoparticle characterization was performed by means of transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The tribological properties, friction coefficients and wear parameters of the formulated oil modified with 0.01 wt% MgO and 1 wt% ILs compared with the neat 10W-40 oil were performed and analysed using a ball-on-three-pins tribometer and a 3D optical profilometer, respectively. Further analysis on the worn surface was shown by Raman spectroscopy and SEM images illustrating the formation of the protective IL and MgO tribo-films as hybrid additives. In friction tests with sliding steel-steel tribo-pairs, IL3-based hybrid nanolubricant decreased the coefficient of friction and wear volume by 7% and 59%, respectively, in comparison with the neat SAE 10W-40, hence better positive synergies were found for MgO and IL3 as hybrid additives. Interestingly, the thermophysical characterization by rheology also revealed that the nanoparticle and ionic liquids addition did not affect neither the viscosity response nor the Newtonian behaviour of the engine oil, adequately meeting the requirements for their use in internal combustion engines. Graphical Abstract

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“…As an alternative to today's engine lubricants, rapeseed [10], jatropha [11,12], palm [13], and wild mustard [14] non-edible and/or eco-friendly plant-based bio-lubricants are being produced, and efforts are being made to improve their parameters and characteristics, such as spark plug fouling [6], emissions [6,10,13], thermal aging [11,12], friction [11,12], wear [12,13], viscosity [13], foaming characteristics [13], engine performance [10,13], and tribological behaviors [12]. However, in order to improve the properties of the existing engine lubricant, the use of nano-additives such as Al 2 O 3 (aluminum oxide) [15][16][17], TiO 2 (titanium oxide) [15][16][17], MoS 2 (molybdenum disulfide) [18,19], WS 2 (tungsten disulfide) [18], Cr 2 AlC (chromium aluminum carbide) [19], La(OH) 3 (lanthanum(III) hydroxide) [20], graphene oxide [20], ZnO (zinc oxide) [21], CuO (copper oxide) [22], and hBN (hexagonal boron nitride) [23][24][25][26][27][28][29][30][31]…”

Section: Introductionmentioning

confidence: 99%

Effect of Adding Hexagonal Boron Nitride (hBN) Nano-Powder to Lubricant on Performance and Emissions in a Two-Stroke Gasoline Engine

Orman

2023

Sustainability

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The two-stroke engine has many advantages, including low maintenance costs, a high specific power, and a simple structure, compared to four-stroke engines. Since two-stroke engines use a fuel–oil mixture instead of fuel alone, two-stroke engines do not need an oil pan. Unlike the lubrication system in four-stroke engines, the moving parts are lubricated with a fuel–lubricant mixture. As long as the engine is running, the fuel and lubricant burn together. The combustion of this fuel–lubricant mixture can adversely affect exhaust emissions and cause excessive carbon deposits on the spark plug. In this paper, experiments were carried out using different amounts of oil (100:3, 100:3.5, and 100:4 vol.) in a two-stroke gasoline-powered generator. In addition, we attempted to improve the lubricant’s properties by adding hBN (0.5% vol. or 1.3% wt.) to the lubricant. It was observed that the flash point and pour point did not change as a result of the addition of hBN to the lubricant, and the density and viscosity index increased linearly depending on the amount of hBN. In a series of experiments, the generator was examined for performance and emissions. With the addition of hBN, there was a significant decrease in the specific fuel consumption and exhaust gas temperature, the CO2 increased, and the CO and HC decreased. These results show that hBN improves combustion. As a result, it was reported that reducing the amount of lubricant leads to increased emissions and decreased performance. It was found that when 0.5% hBN by volume is added to the lubricant, the lubricating property improves, and thus, the amount of oil added to the fuel can be reduced to an acceptable level (from 100:4 to 100:3.5) without causing mechanical failure in the engine.

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Effect of Cr2AlC nanolamella addition on tribological properties of 5W-30 engine oil

Cited by 15 publications

References 36 publications

A Review of Friction Performance of Lubricants with Nano Additives

A Review of Friction Performance of Lubricants with Nano Additives

Experimental Investigation of Tribological and Rheological Behaviour of Hybrid Nanolubricants for Applications in Internal Combustion Engines

Effect of Adding Hexagonal Boron Nitride (hBN) Nano-Powder to Lubricant on Performance and Emissions in a Two-Stroke Gasoline Engine

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