Reduction of the buckling strength of carbon nanotubes resulting from encapsulation of C-60 fullerenes
文献类型：期刊论文
| 作者 | Zhou, L.; Zhu, B. E.; Pan, Z. Y.; Xwang, Y.; Zhu, J. |
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2007-07-11 |
| 卷号 | 18页码:5 |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/0957-4484/18/27/275709 |
| 英文摘要 | The effect of encapsulation of C60 fullerenes upon the buckling strength of hosting carbon nanotubes (CNTs) has been investigated, using molecular dynamics (MD) simulations. The simulation results show that encapsulating C60 fullerenes into some CNTs with diameters larger than that of the (10, 10) CNT, in particular the (14, 14) and (18, 18) CNTs, significantly reduces the buckling strength, in contrast to the conventional wisdom that fillings increase the mechanical strength of hollow structures. The simulations have also confirmed the previous findings that filling a (10, 10) CNT with C60 increases the buckling strength. Our detailed analysis reveals that the interaction between the C60 fullerenes and the hosting (10, 10) CNT is cylindrically symmetric, while the presence of a zigzag array of C60 inside the (14, 14) CNT breaks the cylindrical symmetry and so does the presence of the three arrays of C60 inside the (18, 18) CNT. The induced asymmetries cause one peak for the C60@(14, 14) system and three peaks for the C60@(18, 18) system in the corresponding force distribution along the circumferential direction. The force concentration leads to observed reduction in the buckling strength. The reduction is more severe for C60@(14, 14) than for C60@(18, 18), because the force distribution of the former system is more asymmetric. |
| WOS关键词 | MOLECULAR-DYNAMICS SIMULATIONS ; DIAMOND |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000247294300022 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.100.186/handle/113462/28061]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Pan, Z. Y. |
| 作者单位 | Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, L.,Zhu, B. E.,Pan, Z. Y.,et al. Reduction of the buckling strength of carbon nanotubes resulting from encapsulation of C-60 fullerenes[J]. NANOTECHNOLOGY,2007,18:5. |
| APA | Zhou, L.,Zhu, B. E.,Pan, Z. Y.,Xwang, Y.,&Zhu, J..(2007).Reduction of the buckling strength of carbon nanotubes resulting from encapsulation of C-60 fullerenes.NANOTECHNOLOGY,18,5. |
| MLA | Zhou, L.,et al."Reduction of the buckling strength of carbon nanotubes resulting from encapsulation of C-60 fullerenes".NANOTECHNOLOGY 18(2007):5. |
入库方式： OAI收割
来源：近代物理研究所
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