Rev.Adv.Mater.Sci. (RAMS)
No 1, Vol. 34, 2013, pages 12-18


I.A. Ovid'ko


Graphene with a high-density ensemble of homogeneously dispersed topological disclinations is defined and theoretically described as a new two-dimensional material hereinafter called highly disclinated graphene (HDG). Within the suggested approach, positive and negative disclinations - pentagon and heptagon rings - in hexagonal lattice of graphene create the nanoscopically buckled structure containing local "hills" and "valleys". It is theoretically shown that the buckled structure is responsible for non-linear superelasticity of graphene-HDG nanocomposites and may cause other, potentially excellent mechanical characteristics of such nanocomposites and HDG.

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