Dinelli, F. and Biswas, S. K. and Briggs, G. A. D. and Kolosov, Oleg (1997) Ultrasound induced lubricity in microscopic contact. Applied Physics Letters, 71 (9). pp. 1177-1179. ISSN 0003-6951Full text not available from this repository.
A physical effect of ultrasound induced lubricity is reported. We studied the dynamic friction dependence on out-of-plane ultrasonic vibration of a sample using friction force microscopy and a scanning probe technique, the ultrasonic force microscope, which can probe the dynamics of the tip-sample elastic contact at a submicrosecond scale. The results show that friction vanishes when the tip-surface contact breaks for part of the out-of-plane vibration cycle. Moreover, the friction force reduces well before such a break, and this reduction does not depend on the normal load. This suggests the presence on the surface of a layer with viscoelastic behavior. (C) 1997 American Institute of Physics.
|Journal or Publication Title:||Applied Physics Letters|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||07 Oct 2012 16:45|
|Last Modified:||07 Oct 2012 16:45|
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