Researchers at Columbia discovered that isotropic stress can cause graphene sheets to morph into a weaker, less stable structure that makes is more susceptible to mechanical failures.
Graphene, a one-atom-thick layer of carbon, is considered the strongest material known to mankind. It has found countless applications in the field of nanotechnology, including the manufacturing of stronger-than-steel-by-a-hundredfold nanotubes. However, Assistant Professor Chris Marianetti at Columbia University has exposed a fundamental structural weakness of graphene that leads to its possible mechanical failure under strain, and could change the way we use this and other materials to build nanotech devices.
Other Images from this Gallery