Audio / Video

Slip Sliding Away

  • 01:07:43

Description

I will discuss recent atomic force microscopy studies of nanoscale single asperity contacts. First, the frictional behavior of truly 2-dimensional materials will be discussed. For contacts to graphene and other 2-D materials, friction depends strongly on the number of 2-D layers. An even stronger effect occurs when graphene is fluorinated, an effect which can be interpreted in the context of the classical Prandti-Tomlinson model of stick-slip friction. I will then discuss the characterization of wear with unprecedented resolution using in-situ tests inside of a transmission electron microscope. For silicon slid against diamond, the shape evolution and volume loss due to wear closely fit a kinetic model based on stress-assisted bonding mechanisms. This allows new insights to be gained about the kinetics of atomic-scale wear.

Details

Title

Slip Sliding Away

Creator

University of California, Berkeley. Dept. of Physics

Published

Berkeley, CA, University of California, Berkeley, Dept. of Physics, April 28, 2014

Full Collection Name

Physics Colloquia

Type

Video

Format

Lecture.

Extent

1 streaming video file

Other Physical Details

digital, sd., col.

Archive

Physics Library

Note

Recorded at a colloquium held on April 28, 2014, sponsored by the Dept. of Physics, University of California, Berkeley.

originally produced as an .mts file in 2014

Speakers: Carpick, Robert.

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Collection

Physics Colloquia

Tracks

colloquia/4-28-14Carpick.mp4 01:07:43

Linked Resources

View record in Digital Collections.