|
Professor Bender's field of research focuses on nanotribology, which
is the science and engineering of friction and wear between rubbing
interfaces probed at the nanometer scale. Continued progress in
areas as diverse as microelectromechanical systems, artificial
joints, continuously variable transmissions, storage media, and
suspension rheology depends on our ability to explore sliding
contacts having nanometer dimensions. Our research focuses on using
state-of-the-art surface probe microscopes and quartz crystal
resonators to explore the frictional and mechanical aspects of
well-characterized surfaces in single-point contact. Examples
include using a scanning tunneling microscope under ultra-high
vacuum to probe the friction and wear of pristine metal surfaces
exposed to well-controlled environments, atomic and colloidal force
microscopes to characterize sliding contact under lubricated
conditions, and QCM techniques to probe surface activity of
tribological agents. Our goal is to gain insight into the mechanisms
of the macroscopic tribological response from the study of
well-characterized contacting nano-scale surfaces.
Selected Publications
M. Abdelmaksoud, J. W.
Bender, J. Krim, Bridging the gap between macro- and nanotribology:
a quartz crystal microbalance study of tricresylphosphate uptake on
metal and oxide surfaces, accepted by Physical Review Letters, 2004
S. S. Shenoy, N. J.
Wagner, J. W. Bender, E-FiRST: Electric field responsive shear
thickening fluids, Rheologica Acta 42(4), 287-294 (2003).
J.
W. Bender, M. E. Salmon, P. E. Russell, Combined AFM and STM imaging
of cross-sectioned GaN LEDs, Scanning 25(1), 45-51 (2003).
M. R. Jolly, J. W. Bender,
and R. T. Mathers, Indirect measurements of microstructure
development in magnetorheological fluids, Int. J. Mod. Phys. B
13(14-16) 2036-2043 (1999).
J.
W. Bender and N. J. Wagner, Reversible shear thickening in
monodisperse and bidisperse colloidal suspensions, J. Rheol.,
40(5) 899-916 (1996).
|
