Cracks at disclinated grain boundaries in graphene
β Scribed by Ovid'ko, I A; Sheinerman, A G
- Book ID
- 125507217
- Publisher
- Institute of Physics
- Year
- 2013
- Tongue
- English
- Weight
- 588 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-3727
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π SIMILAR VOLUMES
Grain boundaries dominate the property of polycrystalline graphene. We report first-principles calculations and classical molecular dynamics simulations that reveal enhanced defect reactivity induced by an inhomogeneous strain field at grain boundaries. Strained carbon bonds located at heptagons and
The cracking of grain boundary facets in polycrystalline materials showing anisotropic thermal expansion behaviour is controlled by several microstructural factors in addition to the intrinsic thermal and elastic properties. Of specific interest are the relative orientation of the two grains meeting
AbstractΓDimpled grain boundary fracture occurs in creep tests, stress relief cracking and hydrogen attack of steels. While the growth of these voids by grain boundary diusion is well established, the mode of void nucleation is uncertain. It is shown that the reduction of surface energy by solute ad