Simulations of the kinetic friction due to adsorbed surface layers

被引：115

作者：

He, G ^{[1
]}

Robbins, MO ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

TRIBOLOGY LETTERS | 2001年 / 10卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

kinetic friction; Amontons' laws; surface layers; molecular dynamics; simulations;

D O I：

10.1023/A:1009030413641

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Simulations of the kinetic friction due to a layer of adsorbed molecules between two crystalline surfaces are presented. The adsorbed layer naturally produces friction that is consistent with Amontons' laws and insensitive to parameters that are not controlled in experiments. The kinetic friction rises logarithmically with velocity as in many experimental systems. Variations with potential parameters and temperature follow variations in the static friction This correlation is understood through analogy with the Tomlinson model and the trends are explained with a hard-sphere picture.

引用

页码：7 / 14

页数：8

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