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Anomalous Strength Characteristics of Tilt Grain Boundaries in Graphene

Open access
Grantab, Rassin, Shenoy, Vivek B., Ruoff, Rodney S.·2010·Science

Abstract

Perfect Imperfections: Graphene is composed of six-atom rings, but will include a number of five- and seven-atom rings as defects. Using simulations, Grantab et al. (p. 946 ) show that more defects do not necessarily lead to greater deterioration of mechanical properties. Mismatches caused by differences in the orientation of neighboring crystals are divided into low- and high-angle grain boundaries, and typically it is the lower-angle boundaries that are stronger. In graphene, by contrast, the larger-angle boundaries, which consist of higher-defect densities, are better able to accommodate the strain and prevent failure that originates in the breakup of the seven-member graphene rings. This suggests ways for synthesizing imperfect graphene sheets that will have mechanical properties that are close to those of perfect graphene.

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Metadata

Authors
Grantab, R., Shenoy, V. B., & Ruoff, R. S.
Venue
Science
Published
2010-11-12
Volume
330
Issue
6006
Pages
946-948
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2124557609
Cited by
829
References
2
FWCI
27.34
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Anomalous Strength Characteristics of Tilt Grain Boundaries in Graphene. https://app.cochat.ai/papers/10.1126/science.1196893
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Grantab, R., Shenoy, V. B., & Ruoff, R. S. (2010). Anomalous Strength Characteristics of Tilt Grain Boundaries in Graphene. Science. https://doi.org/10.1126/science.1196893

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