Press Releases

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A false-color image of a microelectromechanical device. The diamond-based actuator is colored gold. Click to enlarge. Image credit: Ani Sumant.
Thin diamond films provide new material for micro-machines

Researchers at the Center for Nanoscale Materials at the U.S. Department of Energy’s Argonne National Laboratory and a handful of other institutions around the world have directed their focus to exploring microelectromechanical systems made of a relatively new material known as ultrananocrystalline diamond, which is a smooth and wear-resistant diamond thin film.

July 31, 2014
Graphene's hexagonal structure makes it an excellent lubricant. (Click image to enlarge)
Researchers fight friction and wear with one-atom-thick graphene

Nanoscientist Anirudha Sumant and his colleagues at Argonne’s Center for Nanoscale Materials and Argonne’s Energy Systems division applied a one-atom-thick layer of graphene, a two-dimensional form of carbon, in between a steel ball and a steel disk. They found that just the single layer of graphene lasted for more than 6,500 “wear cycles,” a dramatic improvement over conventional lubricants like graphite or molybdenum disulfide.

October 13, 2014