Vibration characteristics of three-dimensional metallic carbon nanostructures with interlocking hexagons pattern (T6 and T14): A molecular dynamics study

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• 作者：S. Ajori ; R. Ansari ; ^{r_ansari@guilan.ac.ir} ; S. Haghighi
• 关键词：Three-dimensional metallic carbon ; Free vibration ; Molecular dynamics simulations
• 刊名：Computational Materials Science
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：128
• 期：Complete
• 页码：81-86
• 全文大小：4686 K
• 卷排序：128

文摘

Fabrication of novel metallic and stable three-dimensional (3D) forms of carbon, i.e. T6 and T14, has recently attracted a lot of interest due to their various potential applications. In the present work, the vibrational behaviors of T6 and T14 with interlocking hexagons are studied via molecular dynamics (MD) simulations. The natural frequencies and mode shapes of T6 and T14 are obtained for beam- and plate-like models. Moreover, the effects of different geometrical parameters such as length, width and cross-sectional area on the vibrational behaviors of these nanostructures are investigated. Also, the natural frequency of models is compared to that of single-walled carbon nanotubes (SWCNTs) with relatively similar dimensions. The results indicate that the natural frequency is strongly sensitive to the geometry, especially in the models with shorter lengths. Furthermore, it is observed that the natural frequency of 3D metallic carbon nanostructures is smaller than that of SWCNTs.