石墨烯在滑动电接触界面中的润滑性能

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL Friction Pub Date : 2024-08-05 DOI:10.1007/s40544-024-0910-7
Lv Wang, Qian Tang, Tao Liang, Chenxu Liu, Deen Sun, Shu Wang, Jingchuan Li, Sam Zhang, Yonggang Meng, Yuehua Huang
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引用次数: 0

摘要

电接触材料的应用越来越广泛,但现有的电接触润滑剂在抗磨损性能和润滑寿命等方面仍有很大的改进空间。石墨烯具有优异的电学和润滑性能,在滑动电接触界面的润滑方面显示出巨大潜力,但相关研究却十分匮乏。一些研究人员已经研究了石墨烯在超低电流下在金涂层/TiN 涂层摩擦副之间的润滑性能。然而,石墨烯在更大和更常用的电流或电压条件下对更广泛使用的电接触材料(如铜及其合金)的润滑性能还未见报道。本文研究了石墨烯在铜及其合金滑动电接触界面上的润滑性能,从不同基底(铜和黄铜)、不同测试方法(恒压和恒流)、不同正常负载和耐久性测试四个方面进行了探讨。实验证明,在上述测试方法和参数下,石墨烯能显著降低黄铜和铜的摩擦和磨损,同时接触电阻较低。我们的工作有望为电接触材料提供一种新的润滑剂,并有助于丰富石墨烯的摩擦学理论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Lubrication performance of graphene in the sliding electrical contact interface

Electrical contact materials are increasingly widely used, but the existing electric contact lubricants still have lots of room for improvement, such as anti-wear performance and lubrication life. Due to the excellent electrical and lubrication properties, graphene shows great potential in lubricating the sliding electrical contact interface, but there is a lack of relevant research. Some researchers have studied the lubrication performance of graphene between the gold-coated/TiN-coated friction pair at an ultra-low current. However, the lubrication performance of graphene on more widely used electrical contact materials such as copper and its alloys under larger and more commonly used current or voltage conditions has not been reported. In this paper, we study the lubrication performance of graphene in the copper and its alloys sliding electrical contact interface under usual parameters, which is explored through four aspects: different substrates—copper and brass, different test methods—constant voltage and constant current, different normal loads and durability test. The experiments demonstrate that graphene can significantly reduce the friction and wear on brass and copper under the above test methods and parameters, with low contact resistance at the same time. Our work is expected to provide a new lubricant for electrical contact materials and contribute to enriching the tribological theory of graphene.

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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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