Eco-Friendly Nanoparticle Additives for Lubricants and Their Tribological Characterization

Peña-Parás, Laura; Maldonado-Cortés, Demófilo; Taha‐Tijerina, Jaime

doi:10.1007/978-3-319-48281-1_72-1

Cited by 2 publications

(1 citation statement)

References 90 publications

(127 reference statements)

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“…The toroidal-like structures are closely related to the well-known sphere-like nanostructures. As mentioned by Kharissova et al [ 37 ], these torus-like materials have been studied more theoretically than experimentally. However, scientific studies have shown their superb properties and promising applications.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotori Structures for Thermal Transport Applications on Lubricants

et al. 2021

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Carbon nanostructures have been recently applied to improve industrial manufacturing processes and other materials; such is the case for lubricants used in the metal-mechanic industry. Nanotori are toroidal carbon nanostructures, obtained from chemical treatment of multi-wall carbon nanotubes (MWCNTs). This material has been shown to have superb anti-wear and friction reduction performance, having the ability to homogeneously disperse within water in concentrations between 1–2 wt.%. Obtained results of these novel nanostructures under water mixtures and novel additives were a set point to our studies in different industrial lubricants. In the present work, nanotori structures have been applied in various filler fractions as reinforcement to evaluate the behavior in thermal transport of water-based (WB) and oil-based (OB) lubricants. Temperature-dependent experiments to evaluate the thermal conductivity were performed using a thermal water bath ranging from room temperature up to 323 K. The obtained results showed a highly effective and favorable improvement in the heat transport of both lubricants; oil-based results were better than water-based results, with nanotori structures increasing the lubricants’ thermal transport properties by 70%, compared to pure lubricant.

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Section: Introductionmentioning

confidence: 99%

Carbon Nanotori Structures for Thermal Transport Applications on Lubricants

et al. 2021

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Effect of Nanoparticles and Microparticles of Hexagonal Boron Nitride on Structure, Thermal and Mechanical Stability of Lithium and Calcium Greases

Senyk,

Gocman,

Skolniak

et al. 2024

Tribol Lett

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Hexagonal boron nitride is being considered as an additive for greases due to its structure and physical and chemical properties. In the context of the application of such lubricants in real tribological systems, it is important to recognise the effect of hexagonal boron nitride not only on tribological properties, but also on other functional properties of this group of lubricants. In the present study, tests including dropping point, penetration and mechanical stability were carried out. Additionally, particular focus was placed on the properties of the additive itself, including particle size distribution and adsorption properties, as determined by scanning electron microscopy and low-temperature adsorption isotherms. The introduction of hexagonal boron nitride particles into lithium and calcium greases resulted in enhanced resistance to high temperature and prolonged mechanical stress. This phenomenon was attributed to the type of base grease and the modifications in the configuration of the grease's spatial network that ensued as a result of the incorporation of solid particles. It was found that an additive with a smaller particle size and a significant proportion of nanoparticle fractions, and a more developed porous structure, was more effective. Microscopic observations of the structure of the greases confirmed that the solid particles were deposited in the spatial network of the greases. The distribution of hexagonal boron nitride in the grease structure was found to be contingent upon the physical and chemical properties of the additive. Furthermore, the type of base grease, including the arrangement of the soap fibre network, was identified as a contributing factor. Graphical Abstract

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Eco-Friendly Nanoparticle Additives for Lubricants and Their Tribological Characterization

Cited by 2 publications

References 90 publications

Carbon Nanotori Structures for Thermal Transport Applications on Lubricants

Carbon Nanotori Structures for Thermal Transport Applications on Lubricants

Effect of Nanoparticles and Microparticles of Hexagonal Boron Nitride on Structure, Thermal and Mechanical Stability of Lithium and Calcium Greases

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