Exploration of Talc nanoparticles to enhance the performance of Lithium grease

Kumar, Nikhil; Saini, Vinay; Bijwe, Jayashree

doi:10.1016/j.triboint.2021.107107

Cited by 20 publications

(15 citation statements)

References 38 publications

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“…It means that the talc is able to form a protective boundary film and repair the rubbing surface to enhance the lubrication performance. Easy layer-shearing effects and the thermostability of talc further improve the lubrication performance [ 31 , 32 ]. On the basis of the tribological analysis described above, as well as the convenient and economic modification route of the talc, the modified talc is confirmed as a promising additive for efficient and green lubrication.…”

Section: Resultsmentioning

confidence: 99%

“…Talc is a 2D layered and naturally abundant mineral; thus, it is low cost, ecofriendly, and stable [ 31 , 32 ]. Its specific gravity ranges from 2.7 to 2.8, and it offers high chemical inertness.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found that using talc as lubricant additives can enhance the lubrication of commercial engine oil. Talc also shows potential as an eco-friendly extreme pressure lubricating additive [ 31 , 32 ]. However, it is difficult to disperse talc nanomaterials in viscous grease, and their enhancement for the lubrication of grease under harsh conditions is unknown.…”

Section: Introductionmentioning

confidence: 99%

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Using Green, Economical, Efficient Two-Dimensional (2D) Talc Nanosheets as Lubricant Additives under Harsh Conditions

et al. 2022

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Two-dimensional (2D) nanomaterials have attracted much attention for lubrication enhancement of grease. It is difficult to disperse nanosheets in viscous grease and the lubrication performances of grease under harsh conditions urgently need to be improved. In this study, the 2D talc nanosheets are modified by a silane coupling agent with the assistance of high-energy ball milling, which can stably disperse in grease. The thickness and size of the talc nanosheet are about 20 nm and 2 µm. The silane coupling agent is successfully grafted on the surface of talc. Using the modified-talc nanosheet, the coefficient of friction and wear depth can be reduced by 40% and 66% under high temperature (150 °C) and high load (3.5 GPa), respectively. The enhancement of the lubrication and anti-wear performance is attributed to the boundary adsorbed tribofilm of talc achieving a repairing effect of the friction interfaces, the repairing effect of talc on the friction interfaces. This work provides green, economical guidance for developing natural lubricant additives and has great potential in sustainable lubrication.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Using Green, Economical, Efficient Two-Dimensional (2D) Talc Nanosheets as Lubricant Additives under Harsh Conditions

et al. 2022

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“…The friction performance of greases can be significantly improved by the addition of nanoparticles. Kumar et al [56] reported the potential of nanoparticles (NPs) of Talc to improve the tribo-performance of Li-based grease in antiwear and extreme-pressure. What's more, Rylski and Siczek [57] and Zhang et al [58] found that the improvement of the dispersibility of nanoparticles can effectively improve the tribology performance of lithium grease with preventing the agglomeration of nanoparticles.…”

Section: Grease Lubricationmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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“…Talib et al compared the lubrication properties of modified jatropha oils (MJOs) mixed with hBN to Crude-jatropha oil (CJO) and synthetic ester (SE) using the tapping torque test and the four-ball test. MJO5 exhibited better friction and wear performance than CJO and SE …”

Section: Introductionmentioning

confidence: 95%

Tribological Performance Evaluation of Greases on a Four-Ball Tester with Graphene Oxide Nanoparticles

Singh,

Saini,

Matharu

et al. 2023

ACS Omega

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Conventional greases have an exceptional place in the field of lubrication. They are unique in the sense of their areas of application and are very difficult to replace with other lubricating substances for the same reason. The advancements in the field of nanoparticles and the results they provide as an additive in greases have great scientific interest as they improve the tribological properties of greases to a great extent. The current work's aim is to synthesize a nanogripe using graphene oxide (GO) nanoparticles to lithium grease (Li grease), which will increase the tribological properties of the plain Li grease. Steps were taken to investigate the impact of variation of load on the frictional and wear characteristics of nanogrease. Synthesis of nanogrease and tribological evaluation were performed with a magnetic stirrer with a hot plate and a four-ball tester. Results indicated that nanogrease exhibits better tribological properties. It is also found that the antiwear and frictional properties of grease are not proportional to the wt % of GO nanoparticles. It is also detected that with the increase in load, the tribological properties of nanogrease increase.

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Exploration of Talc nanoparticles to enhance the performance of Lithium grease

Cited by 20 publications

References 38 publications

Using Green, Economical, Efficient Two-Dimensional (2D) Talc Nanosheets as Lubricant Additives under Harsh Conditions

Using Green, Economical, Efficient Two-Dimensional (2D) Talc Nanosheets as Lubricant Additives under Harsh Conditions

A review of advances in tribology in 2020–2021

Tribological Performance Evaluation of Greases on a Four-Ball Tester with Graphene Oxide Nanoparticles

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