Home > News > Slipping and sliding
September 11th, 2003
Slipping and sliding
Metals consisting of a mosaic of nanoscale crystalline grains may get harder and less ductile as the grains get smaller. But there is some evidence that this hardening declines or perhaps even reverses for very small grains. Investigating such effects, and their causes, is experimentally difficult, but Jakob Schiøtz and Karsten Jacobsen of the Technical University of Denmark in Lyngby have now cast light on the issue through massive computer simulations of nanocrystalline metals containing over 100 million atoms.
Tough foam from tiny sheets: Rice University lab uses atom-thick materials to make ultralight foam July 29th, 2014
Zenosense, Inc. July 29th, 2014
Optimum inertial design for self-propulsion: A new study investigates the effects of small but finite inertia on the propulsion of micro and nano-scale swimming machines July 29th, 2014
A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014