Good news for mechanical applications of graphene -
Researchers have measured the intrinsic strength of single crystal and bicrystal graphene grown using chemical vapor deposition. They have found that polycrystalline graphene with high angle grain boundaries are as strong as single crystal graphene. The high strength is attributed to the atomic-scale strain fields, determined by a transmission electron microscope, in the carbon-carbon bonds at the boundary.
http://www.nature.com/ncomms/2013/131119/ncomms3811/full/ncomms3811.html?WT.ec_id=NCOMMS-20131120
Researchers have measured the intrinsic strength of single crystal and bicrystal graphene grown using chemical vapor deposition. They have found that polycrystalline graphene with high angle grain boundaries are as strong as single crystal graphene. The high strength is attributed to the atomic-scale strain fields, determined by a transmission electron microscope, in the carbon-carbon bonds at the boundary.
http://www.nature.com/ncomms/2013/131119/ncomms3811/full/ncomms3811.html?WT.ec_id=NCOMMS-20131120
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