Multi-scale analysis of the interaction in ultra-long carbon nanotubes and bundles
文献类型：期刊论文
| 作者 | Liu MX3,4; Ye X(叶璇)2,4 ; Bai YX1; Zhang RF1; Wei F1; Li XD3,4
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| 刊名 | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
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| 出版日期 | 2020-09-01 |
| 卷号 | 142页码:18 |
| ISSN号 | 0022-5096 |
| 关键词 | Ultra-long CNT/CNTB Micro/nanoscale mechanical testing system (m/n-MTS) Multi-scale analysis Boundary effects Dynamic friction |
| DOI | 10.1016/j.jmps.2020.104032 |
| 英文摘要 | Ultralow inter-wall interaction is realized in centimeter-long double-walled carbon nanotube (DWCNT) (Zhang, R. et al. Nat. Nanotech. 8, 912-916 (2013)). To further illustrate the mechanism of this special phenomenon, theoretical analysis combining with the experimental test is conducted, where study of the inter-tube interaction in the carbon nanotube bundles (CNTBs) is also included in this paper. In experiment, nanomanipulation difficulties of the ultra-long carbon nanotube (CNT)/CNTB is overcome by establishing a micro/nanoscale mechanical testing system (m/n-MTS), based on which the inter-wall/intertube interaction is firstly in-situ measured under optical microscope (OM). In theory, according to the bottom-up approach, a multi-scale model is developed specially, by which results obtained can be directly compared with the experimental data. The pull-out force consists of three parts: the boundary effect, the configuration force and the dynamic friction. The boundary effect can account for more than 70% when the pull-out velocity equals to 1 mu m/s. The configuration force is greatly enhanced for the CNTB because of the commensurate configuration in the circumferential direction. The dynamic friction shows linear dependence on the pull-out velocity and relates to the overlapped area, which can be manifested when the pull-out velocity reaches to a dozen mu m/s for the ultra-long DWCNT. The dynamic friction coefficient is proved to be 0.29 multiple of critical value based on the experiment data. The pull-out force in the CNTB is found far less than that in the DWCNT due to the greatly reduced contact area. Moreover, it can be deduced that the dynamic friction will show the same order of magnitude as the contribution from the boundary when the pull-out velocity equals to 10 mu m/s or the length is 10 mm. This research reveals the underlying mechanism of the interaction, especially for the dynamic friction force exhibited in the ultra-long CNT/CNTB, and can provide help for designing devices with ultralow friction on macroscale. (C) 2020 Elsevier Ltd. All rights reserved. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | SLIDING BEHAVIOR ; ATOMISTIC SIMULATIONS ; FRICTION ; MECHANICS ; NANOTRIBOLOGY ; BEARING ; FORCE ; SHEAR |
| WOS研究方向 | Materials Science ; Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000546329900015 |
| 资助机构 | National Natural Science Foundation of China[11872035] ; National Natural Science Foundation of China[11902311] ; National Natural Science Foundation of China[11632010] ; National Natural Science Foundation of China[51872156] ; National Natural Science Foundation of China[21636005] ; NationalBasicResearch Program of China[2016YFA0200102] ; Beijing Municipal Science and Technology Commission[D141100 0 0 0614001] |
| 其他责任者 | Li, Xide |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/84730]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green Chem React Engn & Technol, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Tsinghua Univ, Ctr Nano & Micro Mech, Beijing 100084, Peoples R China; 4.Tsinghua Univ, Dept Engn Mech, Appl Mech Lab, Beijing 100084, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu MX,Ye X,Bai YX,et al. Multi-scale analysis of the interaction in ultra-long carbon nanotubes and bundles[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2020,142:18. |
| APA | Liu MX,叶璇,Bai YX,Zhang RF,Wei F,&Li XD.(2020).Multi-scale analysis of the interaction in ultra-long carbon nanotubes and bundles.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,142,18. |
| MLA | Liu MX,et al."Multi-scale analysis of the interaction in ultra-long carbon nanotubes and bundles".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 142(2020):18. |
入库方式： OAI收割
来源：力学研究所
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