Results 91 to 100 of about 198 (130)
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Macroscale Superlubricity on Engineering Steel in the Presence of Black Phosphorus
Nano Letters, 2021Friction and wear are the main reasons for decreasing the lifetime of moving mechanical components and causing energy loss. It is desirable to achieve macroscale superlubricity on industrial materials for minimizing friction. Herein, the two-dimensional material black phosphorus (BP) is prepared as an oil-based nanoadditive in oleic acid (OA) and shown
Haidou Wang, Guo-Zheng Ma, Paul Chu
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Macroscale liquid superlubricity achieved with mixtures of fructose and diols
Wear, 2021Abstract Superlubricity has numerous benefits in industrial applications, but its practical applications are restrained from its heavy dependence on special atmosphere environment and the use of low-dimensional materials. This paper reports a novel and facile method to macroscale liquid superlubricity for steel tribopairs, which realizes superlow ...
Qiang Ma, Shijian Wang, Guangneng Dong
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Black Phosphorus Quantum Dots in Aqueous Ethylene Glycol for Macroscale Superlubricity
ACS Applied Nano Materials, 2020In this study, black phosphorus quantum dots (BPQDs) have been successfully prepared at a low cost and high yield by the liquid-based high-energy ball milling method.
Xiao Yang +2 more
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Macroscale Superlubricity of Hydrated Anions in the Boundary Lubrication Regime
ACS Applied Materials & Interfaces, 2023Cations can achieve excellent hydration lubrication at smooth interfaces under both microscale and macroscale conditions due to the boundary layer composed of hydration shells surrounding charges, but what about anions? Commonly used friction pairs are negatively charged at the solid/solution interface. Achieving anionic adsorption through constructing
Tianyi Han +8 more
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Macroscale Superlubricity Achieved on the Hydrophobic Graphene Coating with Glycerol
ACS Applied Materials & Interfaces, 2020Introduction of graphene-family nanoflakes in liquid results in a reduction in friction and enhanced wear resistance. However, the high demand for dispersity and stability of the nanoflakes in liquid largely restricted the choice of graphene-family nanoflakes thus far.
Yanfei Liu +6 more
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Macroscale ultradurable superlubricity on passivated transition-metal diborides
Acta MaterialiaChangfeng Chen +2 more
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Macroscale Superlubricity Enabled by Hydrated Alkali Metal Ions
Langmuir, 2018Superlubricity based on hydration lubrication provides a near-frictionless lubrication state for the extreme reduction of friction in aqueous conditions. Nevertheless, how to obtain the hydration superlubricity under macroscale conditions with higher load-carrying capacity still remains a challenge and the mechanisms governing macroscale superlubricity
Tianyi Han, Chenhui Zhang, Jianbin Luo
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Achieving macroscale liquid superlubricity using glycerol aqueous solutions
Tribology International, 2021Abstract In this work, we explored macroscale liquid superlubricity using glycerol as the base lubricant to form aqueous solutions with different water/glycerol weight ratios. We find that glycerol aqueous solutions with water/glycerol weight ratio of 0.2 achieves superlubricity (coefficient of ...
Qiang Ma +4 more
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Macroscale superlubricity induced by film-forming polymer brush-grafted colloidal additives
Journal of Colloid and Interface Science, 2023Modifying surfaces with concentrated polymer brushes (CPBs) is an effective way to reduce friction of tribo-pairs lubricated with liquids. We investigate the hypothesis that colloids grafted with CPBs (hybrid colloids) can deposit onto tribo-substrates by varying the solvent quality with respect to the polymer, in order to obtain ultra-low coefficients
Beheshti, Amir +3 more
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In-situ formation of tribofilm with Ti3C2Tx MXene nanoflakes triggers macroscale superlubricity
Tribology International, 2021Abstract In the present work, a robust macroscale superlubricity state was achieved with a coefficient of friction (COF) of 0.002 by introducing Ti3C2Tx MXene nanoflakes in glycerol at Si3N4/sapphire interfaces. The MXene-glycerol solution results in the reduction of COF by 96.90% and 97.87% compared to those of pristine glycerol and Ti3C2Tx MXene ...
Shuang Yi +5 more
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