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Adhesion of Cleaned Nanoscopic Metal Contacts

机译：清洁的纳米金属触点的粘附力

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摘要

Nanoscopic metal contact in the context used in this paper means atomic force microscope (AFM) tips in contact with cleaned, flat, smooth surfaces in ultrahigh vacuum. Such idealised contact conditions are of more and more relevance for technical friction systems despite the fact that for the latter the loads and the velocities are usually higher, the materials used are impure (e.g. alloys) and contaminants or lubricants are present between the sliding surfaces. Sliding contacts in micro-system technology, which is unequivocally a key technology of the future, will presumably be compared with such idealised conditions. Another important reason for the. investigation of nanoscopic contacts is the strong interest in the understanding of the elementary processes and mechanisms causing friction. The investigation of friction systems with a reduced number of influencing parameters offers a chance to gain insight into elementary processes and to compare the results with theoretical models based on physical principles, such as molecular dynamics simulation.
机译：本文中所用的纳米金属接触是指原子力显微镜（AFM）尖端在超高真空下与清洁，平坦，光滑的表面接触。这种理想的接触条件对技术摩擦系统越来越重要，尽管对于后者而言，载荷和速度通常较高，所用材料不纯（例如合金），并且在滑动表面之间存在污染物或润滑剂。毫无疑问，微系统技术中的滑动触点无疑是未来的一项关键技术，可以将其与这种理想条件进行比较。的另一个重要原因。对纳米接触的研究引起了人们对引起摩擦的基本过程和机理的浓厚兴趣。对具有减少的影响参数的摩擦系统的研究提供了一个机会，可以深入了解基本过程，并将结果与​​基于物理原理（例如分子动力学模拟）的理论模型进行比较。

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