Superlubricity Mechanisms and Applications

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 31 December 2025 | Viewed by 916

Special Issue Editors

State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, China
Interests: hydration lubrication; liquid superlubricity; intermolecular and surface forces
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Guest Editor
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Interests: hydration lubrication; superlubricity; bio-lubrication; MEMS tribology

Special Issue Information

Dear Colleagues,

Superlubricity occurs when the frictional resistance between two surfaces in relative motion is exceptionally low or nearly zero. This phenomenon challenges the traditional understanding of friction and offers significant potential for various applications.

The study and application of superlubricity can potentially revolutionize the design and performance of mechanical systems such as bearings, gears, and micro-electro-mechanical systems (MEMS). By reducing friction, it can lead to enhanced energy efficiency, less wear and tear, and longer lifetimes of mechanical components. It also opens up new avenues for research in nanotechnology and surface science, as understanding and harnessing superlubricity requires a deep exploration of the interactions at both the atomic and molecular scale.

The intention of this Special Issue is to share the physical and chemical mechanisms underlying superlubricity and how superlubricity can be harnessed in real-world engineering scenarios.

Dr. Tianyi Han
Dr. Zhongnan Wang
Guest Editors

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Keywords

  • liquid superlubricity
  • solid superlubricity
  • solid liquid combined superlubricity
  • superlubricity mechanisms
  • superlubricity applications

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Published Papers (1 paper)

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Review

37 pages, 30036 KiB  
Review
Lubrication and Drag Reduction for Polymer-Coated Interfaces
by Qiang Yang, Xiang Ben, Jingkai Lin, Yuhao Zhang, Li Xiang, Zhiyong Wei and Yajing Kan
Lubricants 2025, 13(3), 119; https://doi.org/10.3390/lubricants13030119 - 12 Mar 2025
Viewed by 780
Abstract
Lubrication is a well-established strategy for reducing interfacial frictional energy dissipation and preventing surface wear. Various lubricants have been developed, including mineral oil materials, vegetable oil materials, polymer-based materials, and solid lubrication materials. Among these, polymer-based lubrication materials have gained significant interest due [...] Read more.
Lubrication is a well-established strategy for reducing interfacial frictional energy dissipation and preventing surface wear. Various lubricants have been developed, including mineral oil materials, vegetable oil materials, polymer-based materials, and solid lubrication materials. Among these, polymer-based lubrication materials have gained significant interest due to their versatility, leading to the development of tailored strategies to meet diverse application demands. In load-bearing scenarios, polymer-based materials enhance interfacial hydration, exhibiting exceptional frictional properties, including extremely low friction coefficients, high load-bearing capacity, and superior wear resistance. In contrast, in non-load-bearing scenarios, polymer-based coatings improve interfacial hydrophobicity, promoting boundary slip and reducing frictional resistance at the solid–liquid interface (SLI), making them an important strategy for drag reduction. Despite substantial advancements in polymer-based lubrication and drag reduction (PBLDR), the underlying microscopic mechanisms remain incompletely understood. Therefore, this review aims to provide a comprehensive analysis of the fundamental principles governing PBLDR. The main topics covered will include the following: (1) the fundamentals of the surface forces and hydrodynamic force, (2) the mechanisms underlying hydration lubrication, (3) joint lubrication and polymer brush lubrication, (4) the friction tuning and interfacial drag reduction via polymer coating design, and (5) the potential and limitations of polymer-based materials. By summarizing recent advancements in PBLDR, this work will provide valuable contributions to future research and applications in related fields. Full article
(This article belongs to the Special Issue Superlubricity Mechanisms and Applications)
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