Lubricant thickness effects on friction between Pd(100) surfaces

被引：0
|
作者：
Christopher M. Mancinelli
Andrew J. Gellman
机构：
[1] Carnegie Mellon University,Department of Chemical Engineering
来源：
Tribology Letters | 2005年 / 18卷
关键词：
lubricant; -octane films; UHV chamber;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Friction measurements have been made between pairs of Pd(100) surfaces prepared in vacuum with adsorbed n-octane films ranging in thickness from 0 to 20 monolayers on each surface. These measurements have been made at lattice misorientation angles of 0° and 45°. Both sets of measurements reveal friction anisotropy at all except the highest n-octane coverages. The friction coefficient drops with increasing n-octane coverage until it reaches a limiting value of μs ≈ 0.4. The static friction coefficient reveals a different dependence on n-octane coverage than has been observed for alcohols. The friction coefficient decreases more slowly with increasing n-octane coverage than for increasing alcohol coverage.
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页码：253 / 257
页数：4
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