In the Context of Nano Lubrication, Do Nanoparticles Exhibit Favourable Impacts on All Tribo Surfaces? A Review

Singh, Anoop; Dwivedi, Rinky; Suhane, Amit

doi:10.1134/s2070205122020174

Cited by 5 publications

(3 citation statements)

References 121 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The factor in Equation (14) was notably observed to be positive since both the numerator and the denominator were observed to be positive; an addition of nanoparticles to the liquid surrounding the QCM caused a decrease in the half bandwidth, which was attributed to slippage.…”

Section: A Tribological Study Of Aqueous Suspension Of γ-Fe 2 O 3 Nan...mentioning

confidence: 98%

“…Clearly, an understanding of such opposite effects amongst very similar NP additives requires fundamental studies of the underlying mechanisms (e.g., rolling, smoothing, film formation, electro-viscous effects, etc.) that give rise to nanoscale and macroscale tribological attributes (Figure 1) [14]. [12]) and licensed with permission from Creative Commons 4.0 (http://creativecommons.org/licenses/by/4.0).…”

Section: Introductionmentioning

confidence: 99%

“…Highlights were selected to demonstrate a range of experimental and theoretical research, to provide direct connections between the nanoscale and macroscale tribological attributes, and, when possible, to emphasize environmentally friendly materials such as water-based nanofluids. Given the very limited number of highlights presented here, additional in-depth and extensive topical review articles are also included in the references for follow-up reading and background material [2][3][4]10,14,.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fundamental Mechanisms Underlying the Effectiveness of Nanoparticle Additives to Lubricants: 25 Examples Linking Nano- to Macroscale Friction

Krim,

Smirnov

2024

Lubricants

View full text Add to dashboard Cite

Studies of the fundamental origins of friction have undergone rapid acceleration in recent years by providing valuable information on the nanoscale mechanisms responsible for friction at the macroscopic level. Significant efforts have been directed at developing composite nanofluids and nanoparticle additives to unlock new tribological properties unattainable by traditional lubricants. The studies are now further evolving by developing methods to achieve active control over nano- and/or mesoscale friction through the application of magnetic and electric fields external to the contact. These methods constitute an area of rapidly growing interest, and they also illuminate how the performance of conventional lubricants could be enhanced through the synergistic addition of nanoparticles (NPs). This mini review highlights 25 publications that collectively reveal significant progress, as well as important outstanding challenges, to the fundamental understanding of how the addition of NPs impacts lubricant performance. The first two topics focus on how Quartz Crystal Microbalance (QCM) nanotribological response to solid contacts can be linked to macroscale friction coefficients in the boundary lubrication regime and how QCM response upon immersion into a liquid is linked to macroscale lubricity in the mixed and hydrodynamic regimes. The third and fourth topics highlight the pivotal role of nanoparticle charge and surface treatments, while also indicating that the rolling of nanoparticles is ineffective and/or detrimental. The fifth topic focuses on applications that demonstrate the tuning of friction by varying nanoparticle electric charge and/or an external electric potential. The highlighted literature was selected to demonstrate a range of experimental and theoretical research, to provide direct connections between the nanoscale and macroscale tribological attributes, and to emphasize environmentally friendly lubricating materials such as water-based nanofluids.

show abstract

Section: A Tribological Study Of Aqueous Suspension Of γ-Fe 2 O 3 Nan...mentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%