Lightweight, Strong, and Resilient 3D Graphene Metamaterial via a Multi‐flow Assembly
Abstract
ABSTRACT Materials aim to integrate excellent properties, including high strength, stiffness, significant elastic deformation, specifically at low density. However, synthetic materials usually involve trade‐offs among these characteristics, resulting in distinct categories, such as hard and soft carbon materials, despite sharing identical elemental composition. Here, we demonstrate a lightweight graphene metamaterial fabricated via multi‐flow assembly that integrates the mechanical robustness of low‐density hard carbons with the elastic deformability of soft carbons. The representative graphene metamaterial features a cuttlebone‐inspired lamella‐wall architecture. This architecture reasonably strengthens and stiffens the graphene metamaterial, akin to the house‐of‐cards carbon layer arrangement in hard carbons. The intrinsic superelasticity under huge deformation (90%) is also retained in these graphene metamaterials. Our multi‐flow assembly method is facile to prepare varied metamaterials by directly manipulating the arranged texture of individual graphene sheets, paving the way for exploring the unique properties of metamaterials in the macroscopic world and their applications.
Article Details
Authors (14)
Gangfeng Cai
Ziqiu Wang
Department of Physics, Shanghai University of Electric Power 1 , Shanghai 200090,
Wenhao Tong
Laboratory for Multiscale Mechanics and Medical Science State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Xi'an Jiaotong University Xi'an P. R. China
Huasong Qin
State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University 2 , Xi'an 710049,
Peng Li
Yicong Qin
MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Centre for X Polymers Department of Polymer Science and Engineering Zhejiang Key Laboratory of Advanced Organic Materials and Technologies Research Center for Advanced Fibers Zhejiang University Hangzhou P. R. China
Kaiwen Li
State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University
Zihao Deng
Department of Chemistry, and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction
Songhan Shi
MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Centre for X Polymers Department of Polymer Science and Engineering Zhejiang Key Laboratory of Advanced Organic Materials and Technologies Research Center for Advanced Fibers Zhejiang University Hangzhou P. R. China
Haodong Yang
Yilun Liu
Laboratory for Multiscale Mechanics and Medical Science State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Xi'an Jiaotong University Xi'an P. R. China
Zhen Xu
Yingjun Liu
Chao Gao