Achievement of Ultra-Low Friction Through Fundamental Understanding

本研究的目标是对以下方面有一个基本的了解： 摩擦的本质，并利用这些知识来生成表面 在无润滑条件下摩擦力最小。 摩擦力是由于当两个摩擦力发生时的许多现象造成的。 表面相对于彼此移动，包括粘附，重复 表层的塑性和弹性变形、机械的 由于被困的磨损颗粒等阻力。在这项研究中， 对于具有以下特性的材料， 各种类型的原子间键 我们将采取措施消除 其他潜在的影响因素。 测得的摩擦力 将是给定材料组合可获得的最小值。 通过将测得的力数据与所述物体的性质相关联， 表面结合，并且随着材料的表面变形， 应能够制定材料的选择标准， 最小摩擦系统的表面粗糙度设计准则。

The goal of this study is to develop a fundamental understanding of the nature of friction and to use this knowledge to generate surfaces of minimum friction under unlubricated conditions. Friction forces are due to a number of phenomena which occur when two surfaces move relative to one another, including adhesion, repeated plastic and elastic deformation of the surface layers, mechanical resistance due to trapped wear particles, etc. In this study the contribution of adhesion alone will be determined for materials with various types of interatomic bonds. Care will be taken to eliminate other potential contributing phenomena. The measured friction force will then be the minimum obtainable for a given material combination. By correlating the measured force data with the nature of the surfaces bonds and with surface deformation of the materials it should be possible to develop selection criteria for materials and design criteria for surface roughness for minimum friction systems.