Macroscopic Oil-Based Superlubricity Achieved on Steel Surfaces with the Roughness of Engineering Level

Li, Jiayang; Yuan, Yuyang; Amann, Tobias; Yuan, Chengqing; Li, Ké

doi:10.1007/s11249-023-01707-6

Cited by 8 publications

(2 citation statements)

References 50 publications

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“…Liquid superlubricity is subject to far fewer environmental constraints than solid superlubricity. Researchers have found that many different kinds of liquids, such as pure water [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ], acidic aqueous solutions [ 14 , 15 , 16 , 17 ], ionic liquids [ 18 , 19 , 20 , 21 ], oil-based systems [ 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ], liquid polymers [ 30 , 31 ], as well as liquid lubricants with some nanomaterials (graphene, etc.) [ 32 , 33 ] can exhibit superlubricity properties at the macroscopic scale under specific conditions.…”

Section: Introductionmentioning

confidence: 99%

Design of Superlubricity System Using Si3N4/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant

Gao,

Cheng,

Shi

et al. 2023

Polymers

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Polyimide (PI) is a high-performance engineering plastic used as a bearing material. A superlubricity system using Si3N4/PI as the friction pair and nematic liquid crystals (LCs) as the lubricant was designed. The superlubricity performance was studied by simulating the start-stop condition of the machine, and it was found that the superlubricity system had good reproducibility and stability. In the superlubricity system, friction aligned with the PI molecules, and this alignment was less relevant compared to which substance was rubbing on the PI. Oriented PI molecules induced LC molecule alignment when the pretilt angle was very small, and the LC molecules were almost parallel to the PI molecules due to the one-dimensional ordered arrangement of LC molecules and low viscosity, which is conducive to the occurrence of the superlubricity phenomenon.

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Section: Introductionmentioning

confidence: 99%

Design of Superlubricity System Using Si3N4/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant

Gao,

Cheng,

Shi

et al. 2023

Polymers

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“…Superlubricity, or the state of near-zero friction between two surfaces, has sparked significant attention in the past decades, underlining its potential to revolutionize various mechanical systems by dramatically enhancing their efficiency. By virtually eliminating friction, superlubricity promises to minimize energy loss, lower maintenance requirements, and extend the operational life of mechanical devices [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Superlubricity of Materials: Progress, Potential, and Challenges

et al. 2023

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This review paper provides a comprehensive overview of the phenomenon of superlubricity, its associated material characteristics, and its potential applications. Superlubricity, the state of near-zero friction between two surfaces, presents significant potential for enhancing the efficiency of mechanical systems, thus attracting significant attention in both academic and industrial realms. We explore the atomic/molecular structures that enable this characteristic and discuss notable superlubric materials, including graphite, diamond-like carbon, and advanced engineering composites. The review further elaborates on the methods of achieving superlubricity at both nanoscale and macroscale levels, highlighting the influence of environmental conditions. We also discuss superlubricity’s applications, ranging from mechanical systems to energy conservation and biomedical applications. Despite the promising potential, the realization of superlubricity is laden with challenges. We address these technical difficulties, specifically those related to achieving and maintaining superlubricity, and the issues encountered in scaling up for industrial applications. The paper also underscores the sustainability concerns associated with superlubricity and proposes potential solutions. We conclude with a discussion of the possible future research directions and the impact of technological innovations in this field. This review thus provides a valuable resource for researchers and industry professionals engaged in the development and application of superlubric materials.

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Asymmetric Contact Synergy of Unequal-Sized Soft and Hard Clusters in Highly Concentrated ZnCl2 for Heterogeneous Superlubricants

Liu,

Liang,

Chen

et al. 2024

Tribol Lett

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Macroscopic Oil-Based Superlubricity Achieved on Steel Surfaces with the Roughness of Engineering Level

Cited by 8 publications

References 50 publications

Design of Superlubricity System Using Si3N4/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant

Design of Superlubricity System Using Si3N4/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant

Superlubricity of Materials: Progress, Potential, and Challenges

Asymmetric Contact Synergy of Unequal-Sized Soft and Hard Clusters in Highly Concentrated ZnCl2 for Heterogeneous Superlubricants

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