TY - JOUR

T1 - Ultrasound induced lubricity in microscopic contact

AU - Dinelli, F.

AU - Biswas, S. K.

AU - Briggs, G. A. D.

AU - Kolosov, Oleg

PY - 1997/9/1

Y1 - 1997/9/1

N2 - 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.

AB - 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.

U2 - 10.1063/1.120417

DO - 10.1063/1.120417

M3 - Journal article

VL - 71

SP - 1177

EP - 1179

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 9

ER -