Atomic-scale friction and its connection to fracture mechanics

被引：21
作者：
Carpick, RW
Flater, EE
Sridharan, K
Ogletree, DF
Salmeron, M
机构：
[1] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA
[2] Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA USA
来源：
JOM | 2004年 / 56卷 / 10期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1007/s11837-004-0291-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a study of contact, adhesion, and friction for nano-asperities using atomic-force microscopy. Proportionality was observed between friction and true contact area, as well as agreement with continuum mechanics models at the nanometer scale, although several features unique to the nanoscale were also observed. The continuum models can be understood in the framework of fracture mechanics and are used to determine the fundamental tribological parameters of nanoscale interfaces: the interfacial shear strength and the work of adhesion.
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收藏
页码：48 / 52
页数：5
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