ATOMIC-SCALE FRICTION AND WEAR OF MICA

被引：151

作者：

HU, J

XIAO, XD

OGLETREE, DF

SALMERON, M

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

[2] ACAD SINICA,SHANGHAI INST NUCL RES,SHANGHAI 201800,PEOPLES R CHINA

来源：

SURFACE SCIENCE | 1995年 / 327卷 / 03期

关键词：

ATOMIC FORCE MICROSCOPY; MICA; SILICON NITRIDE; TRIBOLOGY; WATER;

D O I：

10.1016/0039-6028(94)00846-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The frictional behavior of mica surfaces with silicon nitride tips has been investigated systematically with the AFM as a function of load, tip geometry, mica lattice orientation and humidity. Frictional forces are found to be proportional to loads between 10 and 80 nN. The friction coefficient is quite reproducible for different samples, tip radii, scanning speed and direction. At low loads, however, a non-linear behavior of the friction versus load is observed. At high (> 70%) relative humidity and in water, friction is reduced. Repeated scanning of mica surfaces shows layer-by-layer wear processes.

引用

页码：358 / 370

页数：13