Diamond like carbon (DLC) coatings typically present good self-lubricating tribological properties that could be of interest in sliding dielectric contacts in multiple electrical applications. In this work electro-tribological studies have been performed on several DLC coatings against aluminum in different humidity conditions, in which the coefficients of friction (CoFs) and electrical contact resistance (ECR) were continuously monitored. Results show that CoF and ECR data can be linked to the properties of the coatings (thickness, finishing, microstructure, residual stresses, and wettability) and the degradation modes of their tribological and electrical properties. Therefore, electro-tribological data can provide valuable information about the performance of dielectric coatings, the reasons behind it, and assist in the development of the coatings. ECR also shows potential for on-line monitoring of coated parts in operation.

中文翻译：

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类金刚石碳涂层的电摩擦学性能

类金刚石碳（DLC）涂层通常具有良好的自润滑摩擦学性能，这在多种电气应用中的滑动介电触点中可能会引起关注。在这项工作中，已经在不同湿度条件下对几种铝的DLC涂层进行了电摩擦学研究，其中连续监测摩擦系数（CoFs）和电接触电阻（ECR）。结果表明，CoF和ECR数据可以与涂层的特性（厚度，表面处理，微结构，残余应力和润湿性）以及它们的摩擦学和电气特性的降解模式相关。因此，电摩擦学数据可以提供有关介电涂层性能，原因的宝贵信息，并协助开发涂料。ECR还显示了在线监控涂层零件运行的潜力。