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引用次数: 0
摘要
氢化无定形碳（a-C:H）薄膜具有出色的低摩擦性能，但却绝缘，因此自然被排除在滑动电接触应用之外。在这项工作中，我们利用三电触发点火效应实现了 a-C:H 薄膜的载流低摩擦。在试运行期间，我们在电路中引入了保护电阻，以有效缓解电弧烧蚀。透射电子显微镜观察到磨损轨迹中的石墨呈 T 形结晶结构。顶面平行排列的石墨产生了低摩擦，而内部垂直排列的石墨则形成了高效的电子传输通道。这项研究扩大了载流摩擦膜的选择范围，并为载流摩擦膜的设计和调节提供了新的见解。
Current-carrying low friction of hydrogenated amorphous carbon film
Hydrogenated amorphous carbon (a-C:H) films, which equip excellent low friction performance but insulated, are naturally excluded from sliding electrical contact applications. In this work, we achieved current-carrying low friction of a-C:H film by utilizing a triboelectric triggered ignition effect. Protective resistors were introduced in the circuit during run-in for effectively alleviating undesired arc ablation. A T-shape crystalline structure of graphite was observed in the wear track by transmission electron microscopy. The parallel-aligned graphite at the top surface induced low friction, while the vertical-aligned graphite in the interior formed efficient electron transmission channels. This study expands the selection range of current-carrying friction films and provides a novel insight for the design and regulation of current-carrying friction films.
期刊介绍：
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.
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