Graphite and Hybrid Nanomaterials as Lubricant Additives

Zhang, Zhenyu J.; Simionesie, Dorin; Schaschke, Carl J.

doi:10.3390/lubricants2020044

Cited by 106 publications

(66 citation statements)

References 116 publications

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“…The term nanoadditive is commonly used for nanoparticles when they are used as an additive to conventional lubricants. Many studies have reported an effective role of nano-additives in lubricants in terms of improvement of anti-friction and anti-wear properties of materials [1][2][3]. These nano-additives are made up of nano-sized metals [4], metal-oxides [5] and diamond nanoparticles [6].…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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“…Conventional lubricant additives are generally thosecompounds containing sulfur, phosphor, or chlorine, among others [1][2][3] that play an important role in gear lubrication and cutting lubrication. However, the commercial applications of these kinds of additives are unsatisfactory because of the pungent odor, extreme corrosion, and the poor thermal stability [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it can be concluded that both methods (listed above) are classical and have their own defects (the addition of dispersant or usage of surfactant into base oil) for solving the oil solubility of TiO 2 nanoparticles. This claim is strengthened by the works of several researchers [3,[8][9][10][11]23,24,[36][37][38]. Therefore, the application process of the two classical methods was named the traditional process (TP).…”

Section: Introductionmentioning

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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“…Es importante mencionar que entre mas eficiente sea la dispersion de Nps en el aceite se obtendrá mayor poder lubricante con respecto a una concentración similar de Nps (Gu et al, 2013;Koshy et al, 2015;Song et al, 2012;Wan et al, 2015;Yang et al, 2012;Zhang et al, 2014). En esta investigación se estudió a nivel experimental la capacidad lubricante del aceite de ajonjolí extra virgen aditivado con nanopartículas de cobre en dispersión (DNpCu).…”

Section: Introductionunclassified

Estudio del Poder Lubricante del Aceite de Ajonjolí con Adición de Nanopartículas de Cobre

2016

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ResumenEl poder lubricante del aceite de ajonjolí extra virgen con aditivos de nanopartículas de cobre fue evaluado mediante ensayos de desgaste preventivo y presión extrema. El desempeño como lubricante del aceite vegetal fue comparado con el de un lubricante hidráulico comercial. La lubricidad de los aceites fue evaluada a través de la medición del diámetro promedio de la huella de desgaste, la carga anterior al desgaste visible y el punto de soldadura. Los resultados experimentales indican que las nanopartículas de cobre en dispersión actúan como aditivos antidesgaste y como aditivos de extrema presión. Se encontró que una concentración de 1% de nanopartículas de cobre en dispersión en el aceite base, puede superar el desempeño como lubricante de un aceite hidráulico comercial. Palabras claves: aceite de ajonjolí; nanopartículas de cobre; lubricante; tribología; aditivo antidesgaste Study Lubricity of Sesame Oil with Copper Nanoparticles AbstractThe lubricant power of extra virgin sesame oil with the addition of copper nanoparticles was evaluated by tests of preventive wear and extreme pressure. The performance of the vegetable oil as a lubricant was compared with a commercial hydraulic oil. The lubricity of the oils was evaluated by measuring wear scare diameter, last nonseizure load and the weld point. Experimental results indicate that the copper nanoparticles in dispersion act as both anti-wear and extreme pressure additives. It was found that a concentration of 1% copper nanoparticles dispersed in the base oil has better lubricant performance than commercial hydraulic oil.

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Graphite and Hybrid Nanomaterials as Lubricant Additives

Cited by 106 publications

References 116 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

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

Estudio del Poder Lubricante del Aceite de Ajonjolí con Adición de Nanopartículas de Cobre

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