Experimental Investigation of the Velocity Effect on Adhesion Forces with an Atomic Force Microscope
WEI Zheng, ZHAO Ya-Pu
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
Experimental Investigation of the Velocity Effect on Adhesion Forces with an Atomic Force Microscope
WEI Zheng;ZHAO Ya-Pu
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
关键词 ：
07.79.Lh ,
68.37.Ps
Abstract ： Capillary forces are significantly dominant in adhesive forces measured with an atomic force microscope (AFM) in ambient air, which are always thought to be dependent on water film thickness, relative humidity, and the free energy of water film. We study the nature of the pull-off force on a variety of surfaces as a function of tip velocity. It is found that the capillary forces are of relatively strong dependence on tip velocity. The present experiment is expected to provide a better understanding of the work mechanism of AFM in ambient air.
Key words ：
07.79.Lh
68.37.Ps
出版日期: 2004-04-01
引用本文:
WEI Zheng;ZHAO Ya-Pu. Experimental Investigation of the Velocity Effect on Adhesion Forces with an Atomic Force Microscope[J]. 中国物理快报, 2004, 21(4): 616-619.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I4/616
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