The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb
1
School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
2
China Nuclear Power Technology Research Institute Co., Ltd., Reactor Engineering and Safety Research Center, Shenzhen 518031, China
3
Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48108, USA
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(4), 487; https://doi.org/10.3390/nano9040487
Received: 9 February 2019
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Revised: 13 March 2019
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Accepted: 20 March 2019
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Published: 28 March 2019
We report that carbon honeycomb, a new three-dimension carbon allotrope, exhibits large negative Poisson’s ratio, as large as −0.32, in tensile revealed via molecular dynamics simulations. The Poisson’s ratio of carbon honeycomb is anisotropic, and sensitive to temperature. The carbon honeycomb has phase transformation from normal to auxetic by tensile, along both zigzag and armchair directions. The critical strain for the normal-auxetic transition along the cell-axis direction reduces with respect to an increase in temperature. Combined with high strength of 50 GPa, such a unique and adjustable negative Poisson ratio suggests broad engineering applications of carbon honeycomb.
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MDPI and ACS Style
Wang, W.; He, C.; Xie, L.; Peng, Q. The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb. Nanomaterials 2019, 9, 487. https://doi.org/10.3390/nano9040487
AMA Style
Wang W, He C, Xie L, Peng Q. The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb. Nanomaterials. 2019; 9(4):487. https://doi.org/10.3390/nano9040487
Chicago/Turabian StyleWang, Wenrui, Chenwei He, Lu Xie, and Qing Peng. 2019. "The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb" Nanomaterials 9, no. 4: 487. https://doi.org/10.3390/nano9040487
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