Aspect ratio dependent buckling mode transition in single-walled carbon nanotubes under compression

2011 ◽  
Vol 109 (8) ◽  
pp. 084323 ◽  
Author(s):  
Jeremy Feliciano ◽  
Chun Tang ◽  
Yingyan Zhang ◽  
Changfeng Chen
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Single Walled Carbon Nanotubes ◽  
Mode Transition ◽  
Buckling Mode ◽  
Single Walled Carbon ◽  
Ratio Dependent ◽  
Walled Carbon Nanotubes

scholarly journals Buckling of ZnS-filled single-walled carbon nanotubes – The influence of aspect ratio

Carbon ◽  
2014 ◽  
Vol 79 ◽  
pp. 529-537 ◽  
Author(s):  
André O. Monteiro ◽  
Pedro M.F.J. Costa ◽  
Paulo B. Cachim ◽  
David Holec
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Fabrication of flexible, transparent and conductive films from single-walled carbon nanotubes with high aspect ratio using poly((furfuryl methacrylate)-co-(2-(dimethylamino)ethyl methacrylate)) as a new polymeric dispersant

Nanoscale ◽  
2015 ◽  
Vol 7 (15) ◽  
pp. 6745-6753 ◽  
Author(s):  
Taeheon Lee ◽  
Byunghee Kim ◽  
Sumin Kim ◽  
Jong Hun Han ◽  
Heung Bae Jeon ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Ethyl Methacrylate ◽  
Conductive Films ◽  
Aspect Ratios ◽  
Polymeric Dispersant ◽  
Walled Carbon Nanotubes

We synthesized p(FMA-co-DMAEMA) for the dispersion of SWCNTs while maintaining their high aspect ratios.

BUCKLING BEHAVIOR OF SHORT MULTI-WALLED CARBON NANOTUBES UNDER AXIAL COMPRESSION LOADS

2012 ◽  
Vol 12 (06) ◽  
pp. 1250045 ◽  
Author(s):  
A. H. KORAYEM ◽  
W. H. DUAN ◽  
X. L. ZHAO ◽  
C. M. WANG
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Mechanics ◽  
Axial Compression ◽  
Single Walled Carbon Nanotubes ◽  
Buckling Mode ◽  
Chiral Angle ◽  
Single Walled Carbon ◽  
Buckling Behavior ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

We investigate the buckling behaviors of short multi-walled carbon nanotubes (MWCNTs) under axial compression by using molecular mechanics (MM) simulations. The effects of the number of walls, length and chiral angle of MWCNTs on the buckling behaviors are examined. The results show that the buckling behaviors of short MWCNTs are rather different from single walled carbon nanotubes (SWCNTs) and slender MWCNTs. Moreover, it is observed that the buckling strains of short MWCNTs vary inversely proportional to the number of nanotube walls. For slender MWCNTs, the buckling strains fluctuate as the number of walls increase. It increases for beam-like buckling mode, decreases for shell-like buckling mode and is approximately constant for the shell-beam-like buckling mode. The increase in the length of MWCNT has also led to a significant decrease of the buckling strain for short MWCNTs. However, chirality does not have a significant effect on the buckling strain of MWCNTs nor alter the buckling mode of short MWCNTs.

Thermal and Small-Scale Effects on Vibration of Embedded Armchair Single-Walled Carbon Nanotubes

2018 ◽  
Vol 51 ◽  
pp. 24-38 ◽  
Author(s):  
Ahmed Hamidi ◽  
Mohamed Zidour ◽  
Khaled Bouakkaz ◽  
Tayeb Bensattalah
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Vibrational Mode ◽  
Single Walled Carbon Nanotubes ◽  
Small Scale ◽  
Nano Composite ◽  
Single Walled Carbon ◽  
Non Local ◽  
Walled Carbon Nanotubes ◽  
Scale Coefficient

The non-local Timoshenko beam theory has been implemented to investigate the free vibration of armchair single-walled carbon nanotubes embedded in elastic medium including the thermal effects. The mechanical properties of nano-composite (carbon nanotubes and polymer matrix) are treated as functions of temperature change and the analytical solution is derived according to the governing equations of non-local Timoshenko beam models. The equivalent Young’s modulus and shear modulus for armchair single-walled carbon nanotubes are derived using an energy-equivalent model. Influence of small-scale coefficient, vibrational mode number, matrix of nano-composite and aspect ratio on the frequency ratio of the armchair single-walled carbon nanotubes including the thermal effect are studied and discussed. The research work reveals the significance of the small-scale coefficient, the vibrational mode number, the elastic medium and the aspect ratio on the frequency ratio. It is also demonstrated that some properties of free vibrations of single-walled carbon nanotubes are dependent on the change of temperature.

Fabrication of Microfluidic Devices for the study of Ion transport through Single-Walled Carbon Nanotubes

MRS Advances ◽  
2016 ◽  
Vol 1 (28) ◽  
pp. 2085-2090 ◽  
Author(s):  
Khadija Yazda ◽  
Sophie Roman ◽  
Saïd Tahir ◽  
François Henn ◽  
Vincent Jourdain
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Microfluidic Devices ◽  
Single Walled Carbon Nanotubes ◽  
Experimental Conditions ◽  
Single Walled Carbon ◽  
Fluidic Devices ◽  
Excellent Control ◽  
Transport Of Ions ◽  
Walled Carbon Nanotubes

ABSTRACTStudying the transport of ions through single-walled carbon nanotubes (SWCNTs) necessitate the fabrication of a fluidic setup integrating carbon nanotubes. In this article, we report on the development of a simple fabrication protocol of SWCNTs fluidic devices. This protocol allows an excellent control of the system features and of the experimental conditions compared with previously published protocols. Our protocol based on the use of the popular SU-8, the preferred photoresist for the fabrication of high-aspect-ratio patterns, allows one to prepare sealed microfluidic devices incorporating one or several tens of individual carbon nanotubes of length between 20 and 80 µm.

Dynamic Buckling of Single-Walled Carbon Nanotubes under Axial Impact Loading

2013 ◽  
Vol 444-445 ◽  
pp. 178-182
Author(s):  
Chuan An Xiong ◽  
Wu Gui Jiang
Keyword(s):  
Carbon Nanotubes ◽  
Finite Element ◽  
Stress Wave ◽  
Single Walled Carbon Nanotubes ◽  
Stress Wave Propagation ◽  
Buckling Mode ◽  
Single Walled Carbon ◽  
Finite Element Software ◽  
Walled Carbon Nanotubes ◽  
The Impact

Based on the Budiansky-Roth motion criterion, a thin cylinder shell finite element model is established using the finite element software (ABAQUS) to systemically investigate the dynamic bucking behavior of single-walled carbon nanotubes, which is validated by the molecular dynamic model. It is shown that both the magnitude and duration of the impact load have a great influence on the critical buckling load. By comparing the buckling modes, it can be found that the stress wave propagation plays an important role on the buckling deformation. A local axisymmetrical buckling mode is observed at the beginning and then an asymmetrical buckling mode occurs because of the stress wave superposition.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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