Tribological behavior of copper nanoparticles as additives in oil

Choi, Youngmin; Lee, C.; Hwang, Yujin; Park, M.; Lee, J.; Choi, Cheol; Jung, Mi-Hee

doi:10.1016/j.cap.2008.12.050

Cited by 229 publications

(116 citation statements)

References 5 publications

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“…Second, the self-repairing properties of nanoparticles contributed to the reduction of the abrasion mechanism [46]. The formation of a protective tribo-film with the presence of nanoparticles decreases the wear as confirmed by several researchers [47][48][49].…”

Section: Sem and Xrd Surface Morphology Of Electrodeposited Samplesmentioning

confidence: 81%

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Bajwa

Khan

Nazir

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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This paper presents research findings on the tribological performance of electrodeposited coatings subject to nano-lubricants with the addition of nano-Al 2 O 3 and graphene and Ni/nano-Al 2 O 3 composite coatings. Electrodeposited coatings were produced by using a pulse electrodeposition method. Tribological experiments were conducted by using a linear reciprocating ball on flat sliding tribometer. Experimental results confirm that the wear and friction resistance properties have been significantly enhanced by doping of nano-effects in the lubricating oil and composite coating. The addition of Al 2 O 3 nanoparticles in the lubricating oil showed the best tribological properties, followed by Ni-Al 2 O 3 composite coatings and nano-oil with graphene. The surface morphology and microstructure of electrodeposited coatings were examined by using a Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Diffraction (XRD). The wear mechanisms of these coatings subjected to tribological testing were investigated by post-test surface analyses. This research provides novel approach to design durable nano-coatings for tribological applications in various industries such as automotive, aerospace, locomotive and renewable energy technologies.

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Section: Sem and Xrd Surface Morphology Of Electrodeposited Samplesmentioning

confidence: 81%

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Bajwa

Khan

Nazir

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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“…Liu et al [9] and Choi et al [10] are considered copper nanoparticles tribological performance as extracts in grease oil on a tribological stressed wall surface. Lee et al [11] are premeditated the tribological features of graphite nano lubricants.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nanoparticle Enhanced Lubricant Films in Dynamic Properties of Plain Journal Bearings at High Reynolds Numbers

Jamalabadi

2017

IJET

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Abstract. The aim of this paper is numerical analysis of plain journal bearing with Nano particle added lubricating oil. The fluid film bearing is studied with the modified Reynolds equation which considered time dependent inertia effects at rotating speeds with the linearized turbulence. The research is performed for numerous nano-fluids include nanoparticles of CuO, TiO 2 , Ag and Cu and SAE 20W50 as a base fluid. The time transient governing equations include the incompressible mass conservation equation, Navier-Stokes momentum equations for thin film lubrication, and full kinematic including shaft accelerations are solved numerically. Two cases of long and short bearings are studied with Sommerfeld and Gumbel boundary conditions. Linearized force coefficients such as mass, stiffness and damping factors are obtained for an ordinary journal bearing. The ordinary plain journal bearing velocity response and the rotor displacements when sudden forces applied by rigid rotor symmetrically is achieved. The results prove that using the nanoparticle enhanced lubricant causes higher mass coefficients, damping ratios and fluid effective stiffness.

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“…Therefore, such nanoparticles have the potential to provide suitable wear protection and high load carrying ability. Among the metallic nanoparticles, a number of previous research have reported the wear protection and friction behavior of nanolubricants dispersed with copper nanoparticles [2,[4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Wear Behavior of Carbon Coated Copper Nanoparticles as an Additive to Bio-based Lubricant

2017

IJAMAE

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Abstract-This study compares the antiwear (AW) characteristics of bio-based lubricant by addition of carbon-coated copper nanoparticles with the case of non-coated copper nanoparticles, determining the effect of carbon coating. For wear elemental analysis in controlled engine environment, a four-cylinder motoring engine test rig was used. The results showed that carbon-coated nanoparticles helped in wear protection of engine parts.

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Tribological behavior of copper nanoparticles as additives in oil

Cited by 229 publications

References 5 publications

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Effects of Nanoparticle Enhanced Lubricant Films in Dynamic Properties of Plain Journal Bearings at High Reynolds Numbers

Wear Behavior of Carbon Coated Copper Nanoparticles as an Additive to Bio-based Lubricant

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