Structural superlubricity and ultralow friction across the length scales
Structural superlubricity and ultralow friction across the length scales
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DOI：
10.1038/s41586-018-0704-z
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发表时间：
2018-11-22
期刊：
影响因子：
64.8
通讯作者：
Urbakh, Michael
中科院分区：
文献类型：
--
作者：
Hod, Oded;Meyer, Ernst;Urbakh, Michael
结构超润滑是晶体表面之间的超低摩擦和磨损状态，是现代摩擦学中的一种基本现象，它定义了一种新的润滑方法。早期的测量涉及层状材料之间的纳米级接触，但最近的实验进展已将其适用性扩展到微米级。这是在未来技术应用中实际利用结构超润滑性的重要一步，例如耐用的纳米和微机电设备，硬盘驱动器，移动的无摩擦连接器和在极端条件下操作的机械轴承。在这里，我们提供了该领域的概述，包括它的诞生和主要成就，最先进的技术现状以及实现其潜力的挑战。
Structural superlubricity, a state of ultralow friction and wear between crystalline surfaces, is a fundamental phenomenon in modern tribology that defines a new approach to lubrication. Early measurements involved nanometre-scale contacts between layered materials, but recent experimental advances have extended its applicability to the micrometre scale. This is an important step towards practical utilization of structural superlubricity in future technological applications, such as durable nano- and micro-electromechanical devices, hard drives, mobile frictionless connectors, and mechanical bearings operating under extreme conditions. Here we provide an overview of the field, including its birth and main achievements, the current state of the art and the challenges to fulfilling its potential.