Sponsor
This work was supported by the National Science Foundation (Grant No. DMR-052322), Research Corporation (Grant No. CC5608), and the Howard Hughes Medical Institute.
Published In
Applied Physics Letters
Document Type
Article
Publication Date
2007
Subjects
Quartz crystal microbalances, Microelectromechanical systems, Surfaces (Technology), Shear flow -- Mathematical models, Sliding friction -- Measurement
Abstract
The high-speed tribological properties of microscale contacts are studied using an indenter probe and quartz crystal microbalance. Elastic and dissipative shear forces are monitored as a function of contact radius for sapphire/gold interfaces with an adsorbed octadecanethiol monolayer. We observe shear force transitions understood as taking the interface from slipping to stuck conditions. We relate this behavior to the presence of interfacial microslip. Dynamic modeling shows that our observations are consistent with an interface that, when sliding, experiences full slip during half of each cycle. We discuss the implications for this technique as a sensitive probe of sliding friction.
DOI
10.1063/1.2784172
Persistent Identifier
http://archives.pdx.edu/ds/psu/14495
Citation Details
Borovsky, B., Booth, A., & Manlove, E. (2007). Observation of microslip dynamics at high-speed microcontacts. Applied Physics Letters, 91(11), 114101.
Description
This is the publisher's final PDF. Article appears in Journal of Chemical Physics (http://jcp.aip.org/) and is copyrighted (date) by the American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
*At the time of publication Adam M. Booth was affiliated with Grinnell College