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Nanotribology Our research program is unique world-wide, exploring the nano-

Quartz Crystal Microbalance Studies of Atomic-Scale Friction Jacqueline Krim, North Carolina State University, DMR 0805204. Nanotribology Our research program is unique world-wide, exploring the nano-

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Nanotribology Our research program is unique world-wide, exploring the nano-

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  1. Quartz Crystal Microbalance Studies of Atomic-Scale FrictionJacqueline Krim, North Carolina State University, DMR 0805204 Nanotribology Our research program is unique world-wide, exploring the nano- scale origins of friction and heating with a quartz crystal microbalance technique that the PI developed in the late 1980’s with the support of NSF. This year we published a unique study of frictional heating and temperature rise in a molecularly thin lubricant film. Collaborating with theorist Milton Cole, we examined Kr films on graphene and demonstrated for the first time a fundamental under-standing of the balance of frictional heating with evaporative cooling effects. [1] Upper: Artist’s rendition of rubbing induced heating: Lubricant films reduce this effect. Lower: Schematic of the quartz crystal oscillator technique employed for our studies of friction, as reported in a special issue of the Journal of Physics: Condensed Matter.[1]M. Walker, C. Jaye, J. Krim and M. Cole, Frictional temperature rise in a sliding physisorbed monolayer of Kr/graphene, J. Phys. Condens. Matter 24, (2012)

  2. Quartz Crystal Microbalance Studies of Atomic-Scale FrictionJacqueline Krim, North Carolina State University, DMR 0805204 Iyam Lynch, Ph.D. 2011, Now principal physicist, Corinthian Opthalmic, Boone, NC, & Ben Keller, undergrad Diana Berman, Ph.D. 2012, Now postdoctoral researcher, Argonne National Laboratory, & Rebecca Rosenfeld, undergrad Liming Pan, Ph.D. 2011, Now Second Vice President, Credit Policy, Northern Trust Comp., Chicago IL & Steve Corely, undergrad The August 2012 issue of Advances in Physics, a prestigious invitation only journal, is PI Krim’s comprehensive review of atomic-scale friction in molecularly thin films. • DMR0805204 supports two graduate students and three undergrads, with strong representation from female and minority groups. Recent Ph.D. recipients (left), along with the undergrads (right) who were mentored by them, are shown above.

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