Rev.Adv.Mater.Sci. (RAMS)
No 1/2, Vol. 37, 2014, pages 83-89

EQUILIBRIUM DISLOCATION STRUCTURES AT GRAIN BOUNDARIES IN SUBSURFACE AREAS
OF POLYCRYSTALLINE GRAPHENE AND ULTRAFINE-GRAINED METALS

Ya.V. Konakov, I.A. Ovid'ko and A.G. Sheinerman

Abstract

A theoretical model is suggested which describes distribution of grain boundary (GB) dislocations at GBs located in subsurface areas of polycrystalline graphene and ultrafine-grained metals. Within the suggested model, spatial distribution of GB dislocations - basic structural units of GBs - are theoretically revealed as those depending on the presence of triple junction disclinations in polycrystalline graphene and ultrafine-grained metals.

full paper (pdf, 576 Kb)