Graphene lubrication

Liu, Yanfei; Ge, Xiangyu; Li, Jin‐Jin

doi:10.1016/j.apmt.2020.100662

Cited by 113 publications

(71 citation statements)

References 189 publications

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“…Considered as ideal additives, nanocarbons have considerably attracted the interest of researchers. Some recent studies have also discovered that in various engineering applications, materials from the graphene family are among the promising candidates for lubricants and lubricating additives [21,22]. As reported by Ge et al [23], macroscale superlubricity (friction coefficient, μ = 0.0037) at the Si 3 N 4 -SiO 2 interface is achieved when grapheneoxide nanoflakes and ethanediol are used as lubricants.…”

Section: Introductionmentioning

confidence: 94%

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

2020

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Nanodiamond particles (NDPs) have been considered as a potential lubricant additive to various tribological applications, such as water lubrication systems. In this study, the tribological properties of silicon carbide (SiC) lubricated by NDPs dispersed in water are investigated utilizing the ball-on-disk tribometer. It is found that the slight addition of NDP to water (i.e., 0.001 wt%) can distinctly accelerate the running-in process, which is necessary to achieve a friction coefficient (μ) as low as 0.01. This study also discusses two NDP functional terminations —hydroxyl and carboxyl. It is demonstrated that the use of carboxyl-terminated NDP over a wide range of concentration (0.001 wt%–1 wt%) yields a low friction force. In contrast, the ideal effective concentration of hydroxyl-terminated NDP is considerably limited because agglomeration in this material is more probable to occur than in the former. Meanwhile, when utilizing NDPs, the input friction energy (Pin, defined as the product of sliding speed and applied load) is found to have an essential function. Several sliding tests were implemented at various Pin values (50–1,500 mW) using carboxyl-terminated water-dispersed NDPs. It was observed that the μ and wear decreased with increasing Pin when 200 mW < Pin < 1,500 mW. However, when Pin < 200 mW, low friction with high wear occurs compared with the resulting friction and wear when pure water is used.

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Section: Introductionmentioning

confidence: 94%

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

2020

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“…Graphene is a six-carbon atom lied in a layer showing a honeycomb lattice in hexagonal shape. Graphene present itself as a two-dimensional(2D) structure in a single layer [18].Besides, graphene shows a good mechanical strength, smooth atomic surface, excellent thermal stability and low surface energy. With promising the low surface energy, adhesion and friction on different substrate can be reduced [18].…”

Section: Graphene Based Lubricantmentioning

confidence: 99%

“…Graphene present itself as a two-dimensional(2D) structure in a single layer [18].Besides, graphene shows a good mechanical strength, smooth atomic surface, excellent thermal stability and low surface energy. With promising the low surface energy, adhesion and friction on different substrate can be reduced [18]. Furthermore, due to its low interlayer shear strength and the layer structure, graphene were actively being used in research for the tribology properties [19].…”

Section: Graphene Based Lubricantmentioning

confidence: 99%

“…Graphene can improve the lubricating condition by providing a nano-bearing effect that form a protective tribolayer. In the hole of the textured surface, graphene nanoparticle can be stored and released [18]. According to the research carried out by Mohamed, the tribological result shows that graphene nanolubricant had improve the anti-friction properties by 29-35% and the antiwear properties by 22-29% during a boundary lubricating system [20].…”

Section: Graphene Based Lubricantmentioning

confidence: 99%

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Mini review of carbon based additive in machining lubricant

Radhiyah

Li²

2020

JMMST

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Milling process is a major machining process used in various type of industries. This process is used to manufacture components such as impellers and structural parts in aerospace industry. Several problems can be arising during the machining operation because 99% of work done produces heat to the chip, the tool and also the workpiece . The temperature of the tool may rise up to 1000oC and this could lead to accelerate the tool wear rate and also the finishing of the surface of the workpiece. In order to improvise this phenomenon, various type of cutting fluid is used in milling operation to use to reduce the temperature of the workpiece. In general, the fluids are used when cutting the workpiece to lower the heat generated at the interface of the tool chip and also the friction on the workpiece. There are four main types of cutting fluid when commonly found in the market which is straight oils, synthetic fluids, soluble oils and the semi-synthetic fluids. This paper is reviewing on the additive for lubricant and their tribology properties.

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“…Graphene is a developing material with a honeycomb-like two-dimensional crystal structure formed by carbon atoms at the sp2 hybrid junction, exhibiting unmatched electronic, thermal, and mechanical properties [2]. The most important problem for realizing graphene's potential is to achieve mass and controlled production [3]. There are various names for graphene, such as chemically modified graphene, functionalized graphene, chemically altered graphene, or simply graphene [4], [5].…”

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confidence: 99%

A Study on Phase and Microstructure of Reduced Graphene Oxide Prepared by Heating Corncobs

Mas’udah

Taufiq

Sunaryono

2020

JPSE

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The purpose of this study was to find out reduced graphene oxide (RGO) phases by identifying the system, elemental system, and microstructure of corncobs. Characterization was carried out by XRD and SEM-EDX spectroscopy. The temperatures used in this work are 100, 200, and 250 ºC with a holding time of 1 hour. XRD analysis shows that the RGO phase is formed by the structure of the aromatic layer arrangement (graphite 002), and the widening comes from small-dimensional crystallites perpendicular to the aromatic layer (graphite 120). The elements contained in the three samples have a dominant proportion in the elements carbon and oxygen. From the SEM results obtained the morphology of corncobs powder that looks like sheets. The reduced graphene oxide phase is formed from the process of reducing corncobs powder.

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Graphene lubrication

Cited by 113 publications

References 189 publications

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

Low friction in self-mated silicon carbide tribosystem using nanodiamond as lubricating additive in water

Mini review of carbon based additive in machining lubricant

A Study on Phase and Microstructure of Reduced Graphene Oxide Prepared by Heating Corncobs

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