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Strengthening effect of single-atomic-layer graphene in metal–graphene nanolayered composites

Author

Listed:
  • Youbin Kim

    (Graduate School of Energy Environment Water and Sustainability, Korea Advanced Institute of Science & Technology)

  • Jinsup Lee

    (Korea Advanced Institute of Science & Technology)

  • Min Sun Yeom

    (SMB Knowledge Support Center, KISTI
    Materials Research Science and Engineering Center (MRSEC), Northwestern University)

  • Jae Won Shin

    (Korea Basic Science Institute (KBSI))

  • Hyungjun Kim

    (Graduate School of Energy Environment Water and Sustainability, Korea Advanced Institute of Science & Technology)

  • Yi Cui

    (Stanford University)

  • Jeffrey W. Kysar

    (Columbia University)

  • James Hone

    (Columbia University)

  • Yousung Jung

    (Graduate School of Energy Environment Water and Sustainability, Korea Advanced Institute of Science & Technology
    KI for NanoCentury, Korea Advanced Institute of Science & Technology)

  • Seokwoo Jeon

    (Korea Advanced Institute of Science & Technology
    KI for NanoCentury, Korea Advanced Institute of Science & Technology
    Graphene Research Center, KI for NanoCentury, Korea Advanced Institute of Science & Technology)

  • Seung Min Han

    (Graduate School of Energy Environment Water and Sustainability, Korea Advanced Institute of Science & Technology
    KI for NanoCentury, Korea Advanced Institute of Science & Technology)

Abstract

Graphene is a single-atomic-layer material with excellent mechanical properties and has the potential to enhance the strength of composites. Its two-dimensional geometry, high intrinsic strength and modulus can effectively constrain dislocation motion, resulting in the significant strengthening of metals. Here we demonstrate a new material design in the form of a nanolayered composite consisting of alternating layers of metal (copper or nickel) and monolayer graphene that has ultra-high strengths of 1.5 and 4.0 GPa for copper–graphene with 70-nm repeat layer spacing and nickel–graphene with 100-nm repeat layer spacing, respectively. The ultra-high strengths of these metal–graphene nanolayered structures indicate the effectiveness of graphene in blocking dislocation propagation across the metal–graphene interface. Ex situ and in situ transmission electron microscopy compression tests and molecular dynamics simulations confirm a build-up of dislocations at the graphene interface.

Suggested Citation

  • Youbin Kim & Jinsup Lee & Min Sun Yeom & Jae Won Shin & Hyungjun Kim & Yi Cui & Jeffrey W. Kysar & James Hone & Yousung Jung & Seokwoo Jeon & Seung Min Han, 2013. "Strengthening effect of single-atomic-layer graphene in metal–graphene nanolayered composites," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3114
    DOI: 10.1038/ncomms3114
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    Cited by:

    1. Zan Li & Yin Zhang & Zhibo Zhang & Yi-Tao Cui & Qiang Guo & Pan Liu & Shenbao Jin & Gang Sha & Kunqing Ding & Zhiqiang Li & Tongxiang Fan & Herbert M. Urbassek & Qian Yu & Ting Zhu & Di Zhang & Y. Mor, 2022. "A nanodispersion-in-nanograins strategy for ultra-strong, ductile and stable metal nanocomposites," Nature Communications, Nature, vol. 13(1), pages 1-13, December.

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