Diameter dependent wall deformations during the compression of a carbon nanotube bundle

2003 ◽  
Vol 68 (24) ◽  
Author(s):  
U. D. Venkateswaran ◽  
D. L. Masica ◽  
G. U. Sumanasekera ◽  
C. A. Furtado ◽  
U. J. Kim ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Nanotube Bundle

Photocurrent in Carbon Nanotube Bundle: Graded Seebeck Coefficient Phenomenon

Nano Energy ◽  
2021 ◽  
pp. 106054
Author(s):  
Shen Xu ◽  
Hamidreza Zobeiri ◽  
Nicholas Hunter ◽  
Hengyun Zhang ◽  
Gyula Eres ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Seebeck Coefficient ◽  
Nanotube Bundle

scholarly journals EVOLUTION OF THE CARBON NANOTUBE BUNDLE STRUCTURE UNDER BIAXIAL AND SHEAR STRAINS

2020 ◽  
pp. 525
Author(s):  
Leysan Kh. Rysaeva ◽  
Dmitry V. Bachurin ◽  
Ramil T. Murzaev ◽  
Dina U. Abdullina ◽  
Elena A. Korznikova ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Shear Strain ◽  
Cross Sections ◽  
Degrees Of Freedom ◽  
Shear Bands ◽  
Volumetric Strain ◽  
Structural Evolution ◽  
Biaxial Compression ◽  
Chain Model ◽  
Nanotube Bundle

Close packed carbon nanotube bundles are materials with highly deformable elements, for which unusual deformation mechanisms are expected. Structural evolution of the zigzag carbon nanotube bundle subjected to biaxial lateral compression with the subsequent shear straining is studied under plane strain conditions using the chain model with a reduced number of degrees of freedom. Biaxial compression results in bending of carbon nanotubes walls and formation of the characteristic pattern, when nanotube cross-sections are inclined in the opposite directions alternatively in the parallel close-packed rows. Subsequent shearing up to a certain shear strain leads to an appearance of shear bands and vortex-like displacements. Stress components and potential energy as the functions of shear strain for different values of the biaxial volumetric strain are analyzed in detail. A new mechanism of carbon nanotube bundle shear deformation through cooperative, vortex-like displacements of nanotube cross sections is reported.

scholarly journals Supercurrent and Phase Slips in a Ballistic Carbon Nanotube Bundle Embedded into a van der Waals Heterostructure

Nano Letters ◽  
2021 ◽  
Author(s):  
Christian Bäuml ◽  
Lorenz Bauriedl ◽  
Magdalena Marganska ◽  
Milena Grifoni ◽  
Christoph Strunk ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Van Der Waals ◽  
Van Der Waals Heterostructure ◽  
Nanotube Bundle ◽  
Phase Slips

scholarly journals Numerical simulation of the mechanical behavior of a carbon nanotube bundle

2020 ◽  
Author(s):  
Daniel Mählich ◽  
Oliver Eberhardt ◽  
Thomas Wallmersperger
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Mechanical Behavior ◽  
Complex Structure ◽  
Loading Test ◽  
Nanotube Bundles ◽  
Excellent Method ◽  
Clear Insight ◽  
Carbon Nanotube Fibers ◽  
Nanotube Bundle

AbstractDue to their outstanding mechanical properties, carbon nanotubes (CNTs) are very promising materials for further applications in the field of lightweight construction. Carbon nanotube fibers, whose structure consists of a multitude of load-bearing carbon nanotube bundles interconnected by threads, are an excellent possibility to utilize these properties as engineering material. In the present research, a new method for the prediction of the mechanical properties of carbon nanotube bundles is presented. Within this, the complex structure is transformed into a simplified model based on suitable assumptions. Several parameters of the bundle are taken into account such as different types of nanotubes and various nanotube lengths. The model is applied to different configurations of carbon nanotube bundles by using a molecular mechanics approach. The interactions between the nanotubes are investigated by analyzing the Lennard–Jones potential in a virtual tensile loading test. For different configurations, the resulting forces and stresses are obtained. The results give a clear insight into the influencing parameters and demonstrate their effect on the mechanical behavior. In conclusion, the present approach is an excellent method to analyze the mechanical behavior of CNT bundles.

Nanoscale Uniaxial Pressure Effect of a Carbon Nanotube Bundle on Tip-Enhanced Near-Field Raman Spectra

Nano Letters ◽  
2006 ◽  
Vol 6 (6) ◽  
pp. 1269-1273 ◽  
Author(s):  
Taka-aki Yano ◽  
Yasushi Inouye ◽  
Satoshi Kawata
Keyword(s):  
Carbon Nanotube ◽  
Raman Spectra ◽  
Pressure Effect ◽  
Near Field ◽  
Uniaxial Pressure ◽  
Nanotube Bundle
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