Recent achievements in the synthesis and application of inorganic nanoparticles as lubricant components

Bakunin, V. N.; Suslov, A. Yu.; Kuz’mina, G. N.; Parenago, O. P.

doi:10.1002/ls.3010170202

Cited by 48 publications

(20 citation statements)

References 75 publications

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“…Reviews of the use of nanoparticles in lubricants can be found in [209][210][211]. Many different types of material have been examined as colloidal additives to reduce both friction and wear, but the most common are metals, metallic oxides, borates and phosphates, fullerenes, inorganic fullerenes, boron oxide and nitride and recently graphene.…”

Section: Nanoparticle Additive Research; 1990 To Presentmentioning

confidence: 99%

Friction Modifier Additives

2015

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The need for energy efficiency is leading to the growing use of additives that reduce friction in thin film boundary and mixed lubrication conditions. Several classes of such friction modifier additive exist, the main ones being organic friction modifiers, functionalised polymers, soluble organo-molybdenum additives and dispersed nanoparticles. All work in different ways. This paper reviews these four main types of lubricant friction modifier additive and outlines their history, research and the mechanisms by which they are currently believed to function. Aspects of their behaviour that are still not yet fully understood are highlighted.

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Section: Nanoparticle Additive Research; 1990 To Presentmentioning

confidence: 99%

Friction Modifier Additives

2015

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“…The binding energy of iron (Fe2p) locates at 707.1 and 711.2 eV, respectively, corresponded to Fe 3+ (oxide), i.e. to Fe2O3 [30,32,[40][41][42]44]. Fe2p spectra showed a presence of Fe 2+ and Fe 3+ .…”

Section: Tribological Mechanisms Of Tio2 Nanoparticlesmentioning

confidence: 99%

Tribological Properties of the Lubricant Containing Titanium Dioxide Nanoparticles as an Additive

Ilie

Covaliu

2016

Lubricants

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Abstract:To improve the oil-solubility of nanoparticles, a new technology was used to prepare a kind of lubricant containing titanium dioxide (TiO 2 ) nanoparticles. The microstructures of the prepared nanoparticles were characterized via transmission electron microscope (TEM) and infrared spectroscopy (IR). Tribological properties of TiO 2 nanoparticles used as an additive in base oil were evaluated using four-ball tribometer and ball-on-disk tribometer. In addition, the worn surface of the steel ball was investigated via polarized microscopy (PM) and X-ray photoelectron spectroscopy (XPS). The TiO 2 nanoparticles can be completely well-dispersed in the base oil under a new process (NP), which has no significantly negative effect on the anti-oxidation property. The results of the tribological tests show that TiO 2 nanoparticles under the NP show a better anti-wear property and friction-reducing property in base oil compared to TiO 2 nanoparticles under the tradition process (TP). The main aim of this paper lies in solving with the oil-solubility problem through the combination effect of surface modification and special blend process of lubricating oil. This method was first used to prepare lubricant containing TiO 2 nanoparticles and then used as additives in engine oil, gear oil, and other industrial lubricants. At the same time, tribological properties of TiO 2 nanoparticles in base oil as a lubricating additive were also studied.

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“…Nanoparticles have efficient lubrication features in addition to their satisfactory cooling performance. Therefore, the tool flank wear is much reduced and this brings out many benefits: (1) increasing hob life, (2) reducing the gear profile error, (3) improvement of gear surface smoothness and (4) reducing the friction force.…”

Section: Evaluation Of Hob Wearmentioning

confidence: 99%

“…In recent times, nanofluid, a fluid containing nanoparticle such as Al 2 O 3 , WS 2 , MoS 2 , have been effectively used by their cooling lubrication for the gear transmission [1]. Compared to the general industrial lubricants, the nanolubricant can not only reduce the coefficient of friction but also increase heat transfer [2]. In the machining field [3], the recent study of nanofluid exhibits the promising results as reducing cutting temperature, improving surface finish, and decreasing tool wear.…”

mentioning

confidence: 99%

Investigation of Nanofluids as Potential Cutting Fluids in Gear Hobbing Processes of AISI 4118 Steel

Hoang¹,

Tuấn²,

Long³

2016

JMEA

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Abstract:The present work focuses on the performance of nanofluids called CN46-NanoAl 2 O 3 .80 formulated by using dispersions of nano aluminum oxide (Al 2 O 3 ) in the ISO VG46 industrial oil on machining performance during gear hobbing of AISI 4118 steel. In machining gears, hobbing is one of the most important processes, especially to produce various gear shapes for adapting to diverse applications. However, the demand for high quality brings attention to product quality, particularly the roughness of the machined gear surface because of its effect on product appearance, function, and reliability. For additional improvement, applying nanofluids may produce superior product quality, as the rolling action of billions of nanoparticle units in the tool chip interface can significantly decrease the friction led to reduce the cutting forces. In addition, the characteristics of heat transfer of nanoparticles can contribute to reduce tool wear. In this experimental study, the performance of nanolubricant compared with the case of using ordinary cutting-fluid systems in the existing production line is investigated. The experimental results reveal that the tool life of the hob is significantly enhanced of 55.2%, gear surface roughness is smaller (27.3%), and gear accuracy is significantly increased by using the nanofluid. This result, therefore, shows a promising solution to achieve the engineering-economy effectiveness in gear machining.

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Recent achievements in the synthesis and application of inorganic nanoparticles as lubricant components

Cited by 48 publications

References 75 publications

Friction Modifier Additives

Friction Modifier Additives

Tribological Properties of the Lubricant Containing Titanium Dioxide Nanoparticles as an Additive

Investigation of Nanofluids as Potential Cutting Fluids in Gear Hobbing Processes of AISI 4118 Steel

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