Evaluating the role of spherical titanium oxide nanoparticles in reducing friction between two pieces of cast iron

Kao, Mu‐Jung; Lin, C. H.

doi:10.1016/j.jallcom.2008.07.223

Cited by 73 publications

(42 citation statements)

References 10 publications

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“…j n = 71, a *80 nm spherical droplet develops on the particle consistent with Ga liquid phase. k, l Partial disintegration of wear particle and transfer of liquid to the sample surface Tribol Lett (2012) 45:229-235 233 generated in situ within the contacts through nanostructuring of one of the surfaces [29], both in case of macroscopic contacts [25][26][27][28][29][30][31] as well as and microscopic devices like MEMS [35]. From this study, it is shown that the friction can be reduced with soft nanoparticles as well.…”

Section: Resultsmentioning

confidence: 96%

“…Similar approaches have been used at nanoscale to reduce the friction [25][26][27][28][29][30][31]. Nanoparticles has been introduced within the contacts, either as an additive to commonly used lubricants [25][26][27][28], or Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Introduction of nanoparticles dispersed in lubricant [25][26][27][28] or embedded in nanocomposites [29] or as powder [30,31] has been observed to reduce friction. It has been proposed in these studies that rolling of nanoparticles might be a possible reason for reduction in friction [29][30][31]. In this study, we observe a correlation between the onset of rolling motion of the entrapped nanoparticles and a reduction in measured friction.…”

Section: Introductionmentioning

confidence: 99%

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Dynamical Evolution of Wear Particles in Nanocontacts

et al. 2011

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Nanoscale surface modification, by the interaction of sliding surfaces and mobile nanoparticles, is a critical parameter for controlling friction, wear and failure of surface structures. Here we demonstrate how nanoparticles form and interact in real-time at moving nanocontacts, with reciprocating wear tests imaged in situ at the nanoscale over [300 cycles in a transmission electron microscope. Between sliding surfaces, friction-formed nanoparticles are observed with rolling, sliding and spinning motions, dependant on localised contact conditions and particle geometry. Over periods of many scratch cycles, nanoparticles dynamically agglomerate into elongated clusters, and dissociate into smaller particulates. We also show that the onset of rolling motion of these particles accompanies a reduction in measured friction. Introduction of nanoparticles with optimum shape and property can thus be used to control friction and wear in microdevices.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamical Evolution of Wear Particles in Nanocontacts

et al. 2011

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“…The optimum concentration is approximately 2.0, 0.5, and 1.5 wt.%, respectively [34]. Kao and Lin [35] studied the tribological properties between two pieces of cast iron. The friction and wear experiments were performed using a reciprocating sliding tester.…”

Section: Titanium Dioxide (Tio 2 ) Nanoparticle Additives In Engine Oilmentioning

confidence: 99%

Improving the tribological behavior of internal combustion engines via the addition of nanoparticles to engine oils

Ali¹,

Hou

2015

Nanotechnology Reviews

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The friction between two sliding surfaces is probably one of the oldest problems in mechanics. Frictional losses in any I.C. engine vary between 17% and 19% of the total indicated horse power. The performance of internal combustion engines in terms of frictional power loss, fuel consumption, oil consumption, and harmful exhaust emissions is closely related to the friction force and wear between moving parts of the engine such as piston assembly, valve train, and bearings. To solve this problem, most modern research in the area of Nanotribology (Nano lubricants) aims to improve surface properties, reduce frictional power losses, increase engine efficiency, and reduce consumed fuel and cost of maintenance. Nano lubricants contain different nanoparticles such as Cu, CuO, TiO 2 , Ag, Al 2 O 3 , diamond, and graphene oxide. This paper demonstrates the effect of nanoparticles on the tribological behavior of the engine oil. The main objective of this review is to present recent progress and, consequently, develop an exhaustive understanding about the tribological behavior of engine oils mixed with nanoparticles.

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“…They concluded that the nanoparticles could fill rough cracks in a metal wall surface to reduce the coefficient of friction [38].…”

Section: Nanofluid As Lubricantmentioning

confidence: 99%

Nanofluid Applications in Future Automobiles: Comprehensive Review of Existing Data

Senthilraja¹,

Karthikeyan²,

Gangadevi

2010

Nano-Micro Lett.

106

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In recent years fluids containing suspension of nanometer sized particles have been an active area of research due to their enhanced thermo physical properties over the base fluids like water, oil etc. Nanofluids possess immense potential applications to improve heat transfer and energy efficient in several areas including automobile, micro electronics, nuclear, space and power generation. Nowadays most of the researchers are trying to use the nanofluids in automobile for various applications such as coolant, fuel additives, lubricant, shock absorber and refrigerant. The goal of this paper is to create the awareness on the promise of nanofluids and the impact it will have on the future automotive industry. This paper also presents a comprehensive data of nanofluids application in automobile for various aspects.

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Evaluating the role of spherical titanium oxide nanoparticles in reducing friction between two pieces of cast iron

Cited by 73 publications

References 10 publications

Dynamical Evolution of Wear Particles in Nanocontacts

Dynamical Evolution of Wear Particles in Nanocontacts

Improving the tribological behavior of internal combustion engines via the addition of nanoparticles to engine oils

Nanofluid Applications in Future Automobiles: Comprehensive Review of Existing Data

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