This article investigates silver-palladium (AgPd) microelectrical contact coated with graphene (Gr). An analysis is carried out for 2-D, circle-rectangle microelectrical contact using COMSOL multiphysics finite element analysis (FEA) simulation software tool. Under applied force between 6 and 15 μN, mechanical performance parameters such as contact radius, depth of penetration, and contact pressure are obtained for AgPd uncoated microelectrical contact. The results are validated with the Hertz contact model. The analysis is also carried out for the AgPd microelectrical contact coated with graphene (Gr). The Gr coating thickness is varied between 5 and 10 nm, and better mechanical performance is obtained for lesser coating thickness. This result shows that Gr can be used as a coating and lubricant on AgPd for electrical contact applications.

中文翻译：

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石墨烯涂覆银钯微电接触及涂层厚度影响的研究


本文研究了涂有石墨烯 (Gr) 的银钯 (AgPd) 微电触点。使用 COMSOL 多物理场有限元分析 (FEA) 仿真软件工具对二维圆矩形微电接触进行分析。在 6 至 15 μN 的施加力下，获得了 AgPd 无涂层微电接触的机械性能参数，如接触半径、穿透深度和接触压力。结果通过赫兹接触模型进行了验证。还对涂有石墨烯 (Gr) 的 AgPd 微电触点进行了分析。 Gr涂层厚度在5至10 nm之间变化，涂层厚度越薄，机械性能越好。该结果表明 Gr 可用作 AgPd 上的涂层和润滑剂，用于电接触应用。