Super-elastic and fatigue resistant carbon material with lamellar multi-arch microstructure

Huai-Ling Gao, Yin-Bo Zhu, Li-Bo Mao, Feng-Chao Wang, Xi-Sheng Luo, Yang-Yi Liu, Yang Lu, Zhao Pan, Jin Ge, Wei Shen, Ya-Rong Zheng, Liang Xu, Lin-Jun Wang, Wei-Hong Xu, Heng-An Wu () and Shu-Hong Yu ()
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Huai-Ling Gao: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Yin-Bo Zhu: CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China
Li-Bo Mao: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Feng-Chao Wang: CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China
Xi-Sheng Luo: CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China
Yang-Yi Liu: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Yang Lu: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Zhao Pan: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Jin Ge: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Wei Shen: Nano-Materials and Environmental Detection Laboratory, Hefei Institute of Intelligent Machines, Chinese Academy of Sciences
Ya-Rong Zheng: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Liang Xu: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Lin-Jun Wang: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China
Wei-Hong Xu: Nano-Materials and Environmental Detection Laboratory, Hefei Institute of Intelligent Machines, Chinese Academy of Sciences
Heng-An Wu: CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China
Shu-Hong Yu: Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China

Nature Communications, 2016, vol. 7, issue 1, 1-8

Abstract: Abstract Low-density compressible materials enable various applications but are often hindered by structure-derived fatigue failure, weak elasticity with slow recovery speed and large energy dissipation. Here we demonstrate a carbon material with microstructure-derived super-elasticity and high fatigue resistance achieved by designing a hierarchical lamellar architecture composed of thousands of microscale arches that serve as elastic units. The obtained monolithic carbon material can rebound a steel ball in spring-like fashion with fast recovery speed (∼580 mm s−1), and demonstrates complete recovery and small energy dissipation (∼0.2) in each compress-release cycle, even under 90% strain. Particularly, the material can maintain structural integrity after more than 106 cycles at 20% strain and 2.5 × 105 cycles at 50% strain. This structural material, although constructed using an intrinsically brittle carbon constituent, is simultaneously super-elastic, highly compressible and fatigue resistant to a degree even greater than that of previously reported compressible foams mainly made from more robust constituents.

Date: 2016
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DOI: 10.1038/ncomms12920

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