对油脂润滑下 Cu-C 涂层的摩擦学特性和导电性的深入研究

IF 2.9 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Kuo Yang, Yanqiu Xia, Yi Zhang, Wenhao Chen, Xin Feng
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引用次数: 0

摘要

本文通过磁控溅射镀膜工艺在铜基体上制备了 Cu-C 涂层,并研究了含有 WS2 和 MoS2 的复合油脂对其摩擦学行为和导电性能的影响。实验结果表明,Cu-C 涂层在 5 N 负载的干滑动条件下具有一定的减摩效果。在使用聚脲基润滑脂润滑的状态下,Cu-C 涂层在 2 N 和 5 N 负载下的摩擦系数和接触电阻较低,同时磨损率也有所降低,这表明润滑剂和涂层之间存在协同效应,从而提高了减摩性能。此外,添加 WS2 和 MoS2 等添加剂可有效降低摩擦和接触电阻。值得注意的是,1% WS2 润滑脂与 Cu-C 涂层的结合显示出卓越的兼容性,从而优化了摩擦学性能和导电性能。因此,本研究结果表明,Cu-C 涂层与 WS2 润滑脂的结合可有效提高 Cu-Cu 滑动副的导电性、减摩和抗磨损能力,为增强电动汽车连接器的导电性和提高电池系统的整体效率提供了有效的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Insights into the Tribological Properties and Electrical Conductivity of Cu–C Coating Under Grease Lubrication

Insights into the Tribological Properties and Electrical Conductivity of Cu–C Coating Under Grease Lubrication

In this paper, a Cu–C coating was prepared on a copper substrate through a magnetron sputtering coating process, and the effect of a composite grease containing WS2 and MoS2 on its tribological behavior and electrical conductivity was studied. Experimental results revealed that the Cu–C coating exhibited certain friction-reducing effects under dry sliding conditions with a 5 N load. In the lubricated state with polyurea-based grease, the Cu–C coating demonstrated lower friction coefficients and contact resistances at 2 N and 5 N loads, accompanied by reduced wear rates, indicating a synergistic effect between the lubricant and the coating, enhancing the friction-reducing performance. Furthermore, the incorporation of additives such as WS2 and MoS2 can effectively decrease both friction and contact resistance. Notably, 1% WS2 grease, in combination with Cu–C coating, exhibits superior compatibility, resulting in optimized tribological properties and electrical conductivity. Therefore, the results of this study suggest that the combination of Cu–C coatings with WS2 grease can effectively improve the electrical conductivity and friction-reducing and anti-wear capabilities of Cu–Cu sliding pairs, providing an effective solution for enhancing the electrical conductivity of electric vehicle connectors and improving the overall efficiency of the battery system.

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来源期刊
Tribology Letters
Tribology Letters 工程技术-工程:化工
CiteScore
5.30
自引率
9.40%
发文量
116
审稿时长
2.5 months
期刊介绍: Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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