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DE102011116342B3 - Use of graphene as lubricant for ...

graphene lubricant mixture sports equipment winter sports Prior art date 2011-09-11 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number DE102011116342A Other languages German (de ...

Single layer graphene induces load-bearing molecular ...

2019-9-2 · Carbon-based layers play an important role in boundary lubrication, from graphite as commercial solid lubricant in a spray can over diamond-like carbon coatings in automotive industries [] all the way to graphitic layers found in metal-metal hip implants [].With increasing availability of graphene, the two-dimensional building block of graphite, its possible role in lubrication is being explored.

Single layer graphene induces load-bearing molecular ...

2019-9-2 · Kim K-S, Lee H-J, Lee C, Lee S-K, Jang H, Ahn J-H, Kim J-H and Lee H-J 2011 Chemical vapor deposition-grown graphene: the thinnest solid lubricant ACS Nano 5 5107–14. Crossref Google Scholar. Berman D, Erdemir A and Sumant A V 2013 Few layer graphene to reduce wear and friction on sliding steel surfaces Carbon 54 454–9.

Recent advances in friction and lubrication of …

2019-3-26 · Two-dimensional materials having a layered structure comprise a monolayer or multilayers of atomic thickness and ultra-low shear strength. Their high specific surface area, in-plane strength, weak layer-layer interaction, and surface chemical stability result in remarkably low friction and wear-resisting properties. Thus, 2D materials have attracted considerable attention.

The Flexible Lubrication Performance of Graphene …

The interfacial friction performances of graphene covered and hydrogen-terminated diamond surfaces were investigated comparatively by first-principles calculations within density functional theory (DFT). Both systems exhibit similar excellent lubricating effects under small load, but the graphene covered interface presents small friction than that of hydrogenated system for the larger load.

Friction

2018-10-24 · Friction of low-dimensional nanomaterial systems: GUO Wanlin(),YIN Jun,QIU Hu,GUO Yufeng,WU Hongrong,XUE MinminKey Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, and Institute of Nanoscience, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, …

Friction

2020-10-19 · Measurements have been performed using a microtribometer in the load regime of 0.5 to 1 mN. We observed that a ruby sphere sliding against graphene results in very low friction coefficients ranging from 0.02 to 0.05. The friction and also the stability of the graphene layer is higher than that under similar conditions in ambient conditions.

Nanoscale tribology of graphene grown by chemical …

Results indicate that CVD-grown graphene constitutes a very good solid lubricant on SiO 2, reducing friction coefficients by ∼90% for all investigated samples. Finally, the effect of wrinkles associated with CVD-grown graphene on measured friction values is quantitatively analyzed, with results revealing a substantial increase in friction on ...

Graphene: An Effective Lubricant For Tribological ...

Request PDF | Graphene: An Effective Lubricant For Tribological Applications | The objective of this review paper is to investigate the basic tribological behavior of graphene, the first existing ...

Graphene -- the Subversive New Favorite in …

In addition, a few layers of graphene can work as a solid lubricant in a either wet or dry environment, solving the problem of working conditions, which has existed for many years. The Microtribology shows that the friction factor can be reduced from 0.9-1 to 0.15-0.16 by coating the graphene on the surface of …

‪Jong-Hyun Ahn‬ - ‪Google Scholar‬

Chemical vapor deposition-grown graphene: the thinnest solid lubricant KS Kim, HJ Lee, C Lee, SK Lee, H Jang, JH Ahn, JH Kim, HJ Lee ACS Nano 5 (6), 5107-5114 , 2011

Graphene-Based Lubricants - MarketResearch

2019-3-9 · Graphene-Based Lubricants Graphene, a material consisting of two-dimensional arrays of carbon atoms, is the thinnest material ever created, is hundreds of times stronger than steel, conducts electricity at room temperature better than any other known material, and can convert light at any wavelength into electrical current.

Chemical vapor deposition-grown graphene: the …

Chemical vapor deposition-grown graphene: the thinnest solid lubricant. Kim KS, Lee HJ, Lee C, Lee SK, Jang H, Ahn JH, Kim JH, Lee HJ. Author information. Affiliations. All authors. 1. Department of Nano Mechanics, Nano Convergence and Manufacturing Systems Research Division, Korea Institute of Machinery & Materials, 104 Sinseongno, Yuseong ...

Energy efficient reduced graphene oxide additives ...

Optimized concentration of reduced graphene oxide (rGO) in the lube is one of the important factors for effective lubrication of solid body contacts. At sufficiently lower concentration, the ...

Energy efficient reduced graphene oxide additives ...

2016-1-4 · Kim K. S. et al. Chemical vapor deposition-grown graphene: the thinnest solid lubricant. ACS Nano 5, 5107–5114 (2011). [Google Scholar] Mungse H. P. et al. Synthesis, dispersion and lubrication potential of basal plane functionalized alkylated graphene nanosheets. RSC Adv. 5, 25565–25571 (2015). [Google Scholar]

Investigations on Graphene Platelets as Dry Lubricant …

The benefit of the application of the graphene platelets as a dry lubricant seems to be that the graphene agglomerates on the surface are compressed by the rolling motion. The mechanism is illustrated in Figure 14. Due to the ability of the platelets to cover the roughness asperities, solid metallic contact can …

Graphene dispersion in hydrocarbon medium and its ...

Very recently, reports have been published on graphene as the thinnest solid lubricant and propounded the mechanism of a superlubric system, as evidenced by atomic force microscopy. 10,11 Bermen et al. have reported graphene as a good candidate for steel on steel lubrication. 12 In a review article, the same group has surveyed the tribological ...

What is Graphene? Graphene properties and …

2020-8-15 · Graphene, with its atomically thin and strong structural with low surface energy, is a good candidate for these applications ("Graphene - the thinnest solid lubricant"). Water purification A relatively new method of purifying brackish water is capacitive deionization (CDI) technology.