Reinforcing multiwall carbon nanotubes by electron beam irradiation
文献类型：期刊论文
| 作者 | Duchamp, M ; Meunier, R ; Smajda, R ; Mionic, M ; Magrez, A ; Seo, JW ; Forro, L ; Song, B ; Tomanek, D |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2010 |
| 卷号 | 108期号:8页码:6 |
| ISSN号 | 0021-8979 |
| 通讯作者 | Duchamp, M (reprint author), Ecole Polytech Fed Lausanne, LNNME, CH-1015 Lausanne, Switzerland |
| 英文摘要 | We study the effect of electron beam irradiation on the bending modulus of multiwall carbon nanotubes grown by chemical vapor deposition. Atomic force microscopy observations of the nanotube deflection in the suspended-beam geometry suggest an internal, reversible stick-slip motion prior to irradiation, indicating presence of extended defects. Upon electron beam irradiation, nanotubes with an initial bending modulus exceeding 10 GPa initially get stiffer, before softening at high doses. Highly defective nanotubes with smaller initial bending moduli do not exhibit the initial reinforcement. These data are explained by ab initio molecular dynamics calculations suggesting a spontaneous cross-linking of neighboring nanotube walls at extended vacancy defects created by the electron beam, in agreement with electron microscopy observations. At low defect concentration, depending on the edge morphology, the covalent bonds between neighboring nanotube walls cause reinforcement by resisting relative motion of neighboring walls. At high concentration of defects that are present initially or induced by high electron beam dose, the structural integrity of the entire system suffers from increasing electron beam damage. (C) 2010 American Institute of Physics. [doi:10.1063/1.3493049] |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000283745100129 |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/7035]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Duchamp, M,Meunier, R,Smajda, R,et al. Reinforcing multiwall carbon nanotubes by electron beam irradiation[J]. JOURNAL OF APPLIED PHYSICS,2010,108(8):6. |
| APA | Duchamp, M.,Meunier, R.,Smajda, R.,Mionic, M.,Magrez, A.,...&Tomanek, D.(2010).Reinforcing multiwall carbon nanotubes by electron beam irradiation.JOURNAL OF APPLIED PHYSICS,108(8),6. |
| MLA | Duchamp, M,et al."Reinforcing multiwall carbon nanotubes by electron beam irradiation".JOURNAL OF APPLIED PHYSICS 108.8(2010):6. |
入库方式： OAI收割
来源：上海应用物理研究所
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