Mechanisms and improvements in the friction and wear behavior using MoS2 nanotubes as potential oil additives

Kalin, Mitjan; Kogovšek, J.; Remškar, Maja

doi:10.1016/j.wear.2012.01.011

Cited by 258 publications

(153 citation statements)

References 49 publications

Supporting

Mentioning

148

Contrasting

Order By: Relevance

“…5, it shows that the lubricants with CNC nanoparticle addition have a lower friction coefficient than the pure oil lubricant, In fact, the main favorable benefit of the nanoparticle as oil additives is attributed decidedly to the following two effects, namely, ball bearing mechanism [26,27] and third body materials forming mechanism [28]. Specifically, the present frictionless phenomenon can be most likely attributed to the fact that a ball bearing effect induced by the spherelike multilayered structure of the CNC particles [29][30][31][32]. As shown in Fig.…”

Section: Resultsmentioning

confidence: 92%

Tribological Properties of Carbon Nanocapsule Particles as Lubricant Additive

Jeng

Huang

Tsai

et al. 2014

Journal of Tribology

View full text Add to dashboard Cite

An experimental investigation is performed into the tribological properties of mineral oil lubricants containing carbon nanocapsules (CNCs) additives with various concentrations (wt.%). Friction characteristics and wear behaviors at contact interfaces are examined by the block-on-ring tests, high-resolution transmission electron microscopy (HRTEM), and mapping (MAP) analysis. The results suggest that the addition of CNCs to the mineral oil yields an effective reduction in the friction coefficient at the contact interface. Molecular dynamics (MD) simulations clarify the lubrication mechanism of CNCs at the sliding system, indicating the tribological properties are essentially sensitive to the structural evolutions of CNCs.

show abstract

Section: Resultsmentioning

confidence: 92%

Tribological Properties of Carbon Nanocapsule Particles as Lubricant Additive

Jeng

Huang

Tsai

et al. 2014

Journal of Tribology

View full text Add to dashboard Cite

show abstract

“…As a result of concerted efforts, very low friction, even as low as a coefficient of friction of 0.005, has been measured in the presence of friction modifier additives like glycerol mono-oleate (GMO) or pure glycerol when lubricating tetragonal amorphous carbon coatings [33][34][35]. Nanomaterials with very promising tribological properties under investigation are carbon-based additives including nano-diamonds, onion-like carbons, carbon nanotubes, graphene, graphite as well as some inorganic fullerenes of transition metal dichalcogenides, like MoS 2 and WS 2 , and copper, polymeric and boron-based nanoparticles [36][37][38][39][40][41][42][43].…”

Section: Lubricantsmentioning

confidence: 99%

Influence of tribology on global energy consumption, costs and emissions

2017

View full text Add to dashboard Cite

Abstract:Calculations of the impact of friction and wear on energy consumption, economic expenditure, and CO 2 emissions are presented on a global scale. This impact study covers the four main energy consuming sectors: transportation, manufacturing, power generation, and residential. Previously published four case studies on passenger cars, trucks and buses, paper machines and the mining industry were included in our detailed calculations as reference data in our current analyses. The following can be concluded:-In total, ~23% (119 EJ) of the world's total energy consumption originates from tribological contacts. Of that 20% (103 EJ) is used to overcome friction and 3% (16 EJ) is used to remanufacture worn parts and spare equipment due to wear and wear-related failures.-By taking advantage of the new surface, materials, and lubrication technologies for friction reduction and wear protection in vehicles, machinery and other equipment worldwide, energy losses due to friction and wear could potentially be reduced by 40% in the long term (15 years)and by 18% in the short term (8 years). On global scale, these savings would amount to 1.4% of the GDP annually and 8.7% of the total energy consumption in the long term.-The largest short term energy savings are envisioned in transportation (25%) and in the power generation (20%) while the potential savings in the manufacturing and residential sectors are estimated to be ~10%. In the longer terms, the savings would be 55%, 40%, 25%, and 20%, respectively.-Implementing advanced tribological technologies can also reduce the CO 2 emissions globally by as much as 1,460 MtCO 2 and result in 450,000 million Euros cost savings in the short term. In the longer term, the reduction can be 3,140 MtCO 2 and the cost savings 970,000 million Euros.Fifty years ago, wear and wear-related failures were a major concern for UK industry and their mitigation was considered to be the major contributor to potential economic savings by as much as 95% in ten years by the development and deployment of new tribological solutions. The corresponding estimated savings are today still of the same orders but the calculated contribution to cost reduction is about 74% by friction reduction and to 26% from better wear protection. Overall, wear appears to be more critical than friction as it may result in catastrophic failures and operational breakdowns that can adversely impact productivity and hence cost.

show abstract

“…The primary reason for wear and energy dissipation is called friction. [10][11][12] Lubrication is used to effectively control the wear and to reduce the friction and the method of improving the effectiveness to prevent the scratch in solid contacts is known as lubrication. [13][14][15] The lubricant additives are certain materials which are additionally included with the base oil to facilitate the wear and friction characteristics by provision for adsorption.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis on Nanolubricants Used in Multi Cylinder Petrol Engine With Copper Oxide as Nanoparticle

2017

RJC

View full text Add to dashboard Cite

Now a day's, nanoparticles are extensively used to increase the thermal conductivity, heat transfer rate and tribological properties of the engine lubricant by adding nano additives to form nanofluids. Accumulation of nanoparticles in engine lubricant may reduce friction with the improvement of the lubrication characteristics. In order to reduce the friction and wear lubricants are used, but still, the fuel consumed for frictional losses is about ten to twenty percentages of the total fuel supply. This research work focuses on the preparation of nanolubricants by selecting suitable commercial engine oil, biodegradable oil and nanoparticles based on tribological performance for multicylinder petrol engine applications. The copper oxide nanoparticles and SAE15W40 commercial engine oil and punga oil as biodegradable oil used. The nanolubricants were prepared by adding nanoparticles to the base oils with 0.1% concentrations. From the results it was found that, SAE 15W40 with 0.1% copper oxide is the best nanolubricants for the applications multi cylinder petrol engine.

show abstract

Mechanisms and improvements in the friction and wear behavior using MoS2 nanotubes as potential oil additives

Cited by 258 publications

References 49 publications

Tribological Properties of Carbon Nanocapsule Particles as Lubricant Additive

Tribological Properties of Carbon Nanocapsule Particles as Lubricant Additive

Influence of tribology on global energy consumption, costs and emissions

Experimental Analysis on Nanolubricants Used in Multi Cylinder Petrol Engine With Copper Oxide as Nanoparticle

Contact Info

Product

Resources

About