Author
Listed:
- Zhisheng Zhao
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Erik F. Wang
(College of the University of Chicago)
- Hongping Yan
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Yoshio Kono
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Bin Wen
(State Key Laboratory of Metastable Materials Science and Technology, Yanshan University)
- Ligang Bai
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Feng Shi
(State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Sciences, China University of Geosciences)
- Junfeng Zhang
(State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Sciences, China University of Geosciences)
- Curtis Kenney-Benson
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Changyong Park
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
- Yanbin Wang
(Center for Advanced Radiation Sources, The University of Chicago)
- Guoyin Shen
(High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institution of Washington)
Abstract
Type-II glass-like carbon is a widely used material with a unique combination of properties including low density, high strength, extreme impermeability to gas and liquid and resistance to chemical corrosion. It can be considered as a carbon-based nanoarchitectured material, consisting of a disordered multilayer graphene matrix encasing numerous randomly distributed nanosized fullerene-like spheroids. Here we show that under both hydrostatic compression and triaxial deformation, this high-strength material is highly compressible and exhibits a superelastic ability to recover from large strains. Under hydrostatic compression, bulk, shear and Young’s moduli decrease anomalously with pressure, reaching minima around 1–2 GPa, where Poisson’s ratio approaches zero, and then revert to normal behaviour with positive pressure dependences. Controlling the concentration, size and shape of fullerene-like spheroids with tailored topological connectivity to graphene layers is expected to yield exceptional and tunable mechanical properties, similar to mechanical metamaterials, with potentially wide applications.
Suggested Citation
Zhisheng Zhao & Erik F. Wang & Hongping Yan & Yoshio Kono & Bin Wen & Ligang Bai & Feng Shi & Junfeng Zhang & Curtis Kenney-Benson & Changyong Park & Yanbin Wang & Guoyin Shen, 2015.
"Nanoarchitectured materials composed of fullerene-like spheroids and disordered graphene layers with tunable mechanical properties,"
Nature Communications, Nature, vol. 6(1), pages 1-10, May.
Handle:
RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7212
DOI: 10.1038/ncomms7212
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