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Plate-nanolattices at the theoretical limit of stiffness and strength

Author

Listed:
  • Cameron Crook

    (University of California)

  • Jens Bauer

    (University of California)

  • Anna Guell Izard

    (University of California)

  • Cristine Santos de Oliveira

    (Martin-Luther-Universität Halle-Wittenberg)

  • Juliana Martins de Souza e Silva

    (Martin-Luther-Universität Halle-Wittenberg)

  • Jonathan B. Berger

    (Nama Development, LLC
    University of California)

  • Lorenzo Valdevit

    (University of California
    University of California)

Abstract

Though beam-based lattices have dominated mechanical metamaterials for the past two decades, low structural efficiency limits their performance to fractions of the Hashin-Shtrikman and Suquet upper bounds, i.e. the theoretical stiffness and strength limits of any isotropic cellular topology, respectively. While plate-based designs are predicted to reach the upper bounds, experimental verification has remained elusive due to significant manufacturing challenges. Here, we present a new class of nanolattices, constructed from closed-cell plate-architectures. Carbon plate-nanolattices are fabricated via two-photon lithography and pyrolysis and shown to reach the Hashin-Shtrikman and Suquet upper bounds, via in situ mechanical compression, nano-computed tomography and micro-Raman spectroscopy. Demonstrating specific strengths surpassing those of bulk diamond and average performance improvements up to 639% over the best beam-nanolattices, this study provides detailed experimental evidence of plate architectures as a superior mechanical metamaterial topology.

Suggested Citation

  • Cameron Crook & Jens Bauer & Anna Guell Izard & Cristine Santos de Oliveira & Juliana Martins de Souza e Silva & Jonathan B. Berger & Lorenzo Valdevit, 2020. "Plate-nanolattices at the theoretical limit of stiffness and strength," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15434-2
    DOI: 10.1038/s41467-020-15434-2
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    Cited by:

    1. Ting Yang & Zian Jia & Ziling Wu & Hongshun Chen & Zhifei Deng & Liuni Chen & Yunhui Zhu & Ling Li, 2022. "High strength and damage-tolerance in echinoderm stereom as a natural bicontinuous ceramic cellular solid," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Yingqi Jia & Ke Liu & Xiaojia Shelly Zhang, 2024. "Modulate stress distribution with bio-inspired irregular architected materials towards optimal tissue support," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    3. Zhenyang Gao & Xiaolin Zhang & Yi Wu & Minh-Son Pham & Yang Lu & Cunjuan Xia & Haowei Wang & Hongze Wang, 2024. "Damage-programmable design of metamaterials achieving crack-resisting mechanisms seen in nature," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    4. Wenqi Ouyang & Xiayi Xu & Wanping Lu & Ni Zhao & Fei Han & Shih-Chi Chen, 2023. "Ultrafast 3D nanofabrication via digital holography," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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