Tribology of 2D Nanomaterials and Active Control of Friction Behavior

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1055

Special Issue Editors

School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Interests: solid lubrication; 2D materials; composites; nanoadditives; tribochemical reaction
Special Issues, Collections and Topics in MDPI journals
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Interests: superlubricity; graphene materials; bearing lubrication; friction tuning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Friction and wear between machine pairs always causes excessive energy losses and even mechanical failures in industrial applications. To overcome these problems, researchers have focused on enhancing the performance of lubricants, particularly concerning their reductions in energy dissipation and improvement to durability. Recently, many 2D materials have been used as solid lubricants at the nano/microscales or macroscales, applied as fillers of composites or added to lubricants as additives to enhance lubrication and wear protection performances. These 2D materials exhibit different tribological behaviors, which are valuable to investigate for the development of novel lubrication systems.

The overwhelmingly positive feedback from readers for the first edition of this Special Issue went beyond what we had envisioned, and consequently, in partnership with the Editorial Office of Lubricants, we are delighted to announce the release of the second edition of this Special Issue, titled “Tribology of 2D Nanomaterials and Tuning of Friction Behavior”. This edition explores the most recent advancements in the tribological properties of 2D nanomaterials, as well as cutting-edge progress in tuning techniques for friction behavior.

Dr. Yanfei Liu
Dr. Xiangyu Ge
Guest Editors

Manuscript Submission Information

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Keywords

  • friction and wear
  • nanoadditive
  • lubrication mechanism
  • synergetic effect
  • surface modification
  • structural regulation
  • material characterization
  • active controllable friction

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Published Papers (1 paper)

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Research

12 pages, 17499 KiB  
Article
Comparative Study of the Friction Behavior of Functionalized Graphene Oxide Additives Under Electric Stimulations
by Linghao Zhang, Qiuyu Shi and Xiangyu Ge
Lubricants 2024, 12(12), 455; https://doi.org/10.3390/lubricants12120455 - 19 Dec 2024
Viewed by 723
Abstract
Electro-regulated friction is a widely adopted approach for reducing friction, with graphene oxide (GO) emerging as a promising lubricating additive due to its electro-responsive frictional behaviour. However, with the wide variety of functionalized GO additives available, each exhibiting distinct properties, it remains unclear [...] Read more.
Electro-regulated friction is a widely adopted approach for reducing friction, with graphene oxide (GO) emerging as a promising lubricating additive due to its electro-responsive frictional behaviour. However, with the wide variety of functionalized GO additives available, each exhibiting distinct properties, it remains unclear which type demonstrates the most effective electro-regulated friction-reducing performance, limiting their broader industrial application. In this study, the frictional behaviour of three functionalized GO additives under electric stimulation was investigated along with an analysis of the corresponding worn surfaces. The findings reveal the role of functional groups in determining the tribological performance of functionalized GO additives and the mechanism of electric stimulation. Notably, the formation of ester groups during the friction process of GO-OH enhances the adsorption of GO additives onto steel surfaces, resulting in superior friction-reducing properties. Under lubrication with GO-OH additives, negative electric stimulation promotes the generation of ester groups and transitions the lubrication regime to mixed lubrication, thereby contributing to friction reduction. This work provides new insights into the tribological performance of functionalized GO additives and the mechanisms underlying their electro-regulated behaviours, laying a foundation for the design of GO additives with superior lubrication performance for practical engineering applications. Full article
(This article belongs to the Special Issue Tribology of 2D Nanomaterials and Active Control of Friction Behavior)
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