Effect of surface “groove” structure of carbon nanotube bundles on the formation of nanohybrid shish kebab

2012 ◽  
Vol 27 (21) ◽  
pp. 2812-2818 ◽  
Author(s):  
Nanying Ning ◽  
Wei Zhang ◽  
Jiajie Yan ◽  
Fan Xu ◽  
Changyu Tang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Nanotube Bundles ◽  
Groove Structure ◽  
Surface Groove ◽  
Image Position ◽  
Effect Of Surface

Abstract

scholarly journals Surface Energy-Controlled Self-Collapse of Carbon Nanotube Bundles With Large and Reversible Volumetric Deformation

2013 ◽  
Vol 80 (4) ◽  
Author(s):  
Yuan Cheng ◽  
Nicola Maria Pugno ◽  
Xinghua Shi ◽  
Bin Chen ◽  
Huajian Gao
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Carbon Nanotube ◽  
Surface Energy ◽  
Nanotube Bundles ◽  
Volumetric Deformation ◽  
Equilibrium Configurations ◽  
Simulation Results ◽  
Dynamics Simulations ◽  
Effect Of Surface

Molecular dynamics simulations are performed to investigate the effect of surface energy on equilibrium configurations and self-collapse of carbon nanotube bundles. It is shown that large and reversible volumetric deformation of such bundles can be achieved by tuning the surface energy of the system through an applied electric field. The dependence of the bundle volume on surface energy, bundle radius, and nanotube radius is discussed via a dimensional analysis and determined quantitatively using the simulation results. The study demonstrates potential of carbon nanotubes for applications in nanodevices where large, reversible, and controllable volumetric deformations are desired.

scholarly journals Effect of Surface Groove Structure on the Aerodynamics of Soccer Balls

2020 ◽  
Vol 10 (17) ◽  
pp. 5877
Author(s):  
Sungchan Hong ◽  
Takeshi Asai
Keyword(s):  
Lift Force ◽  
Air Flow ◽  
Flight Trajectory ◽  
Soccer Ball ◽  
Supercritical Region ◽  
Air Resistance ◽  
Ball Surface ◽  
Groove Structure ◽  
Surface Groove ◽  
Effect Of Surface

Soccer balls have undergone dramatic changes in their surface structure that can affect their aerodynamics. The properties of the soccer ball surface such as the panel shape, panel orientation, seam characteristics, and surface roughness have a significant impact on its aerodynamics and flight trajectory. In this study, we performed wind-tunnel tests to investigate how the introduction of grooves on the surface of a soccer ball affects the flight stability and aerodynamic forces on the ball. Our results show that for soccer balls without grooves, changing the panel orientation of the ball causes a significant change in the drag coefficient. Soccer balls with grooves exhibited a smaller change in air resistance (Cd) in the supercritical region (20 to 30 m/s; 3.0 × 105 ≤ Re ≤ 4.7 × 105), compared to the ungrooved ball where only the panel orientation was changed. Furthermore, at power-shot speeds (25 m/s), the grooved ball exhibited smaller variations in lift force and side force than the ungrooved ball. These results suggest that a long groove structure on the surface of the soccer ball has a significant impact on the air flow around the ball in the supercritical region, and has the effect of keeping the air flow separation line constant.

Role of hierarchical morphology of helical carbon nanotube bundles on thermal expansion of polymer nanocomposites

2017 ◽  
Vol 32 (14) ◽  
pp. 2738-2746 ◽  
Author(s):  
Oleksandr G. Kravchenko ◽  
Xin Qian ◽  
Sergii G. Kravchenko ◽  
Rocio Misiego ◽  
R. Byron Pipes ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Carbon Nanotube ◽  
Polymer Nanocomposites ◽  
Nanotube Bundles ◽  
Image Position ◽  
Hierarchical Morphology

Abstract

Unzipping Carbon Nanotube Bundles through NH−π Stacking for Enhanced Electrical and Thermal Transport

2021 ◽  
Author(s):  
Shuiliang Wang ◽  
Zhequn Huang ◽  
Wenbo Shi ◽  
Dongwook Lee ◽  
Qixiang Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Thermal Transport ◽  
Nanotube Bundles ◽  
Π Stacking

Green and facile synthesis of carbon nanotube supported Pd nanoparticle catalysts and their application in the hydrogenation of nitrobenzene

2013 ◽  
Vol 28 (10) ◽  
pp. 1326-1333 ◽  
Author(s):  
Zhonglai Wang ◽  
Hua Liu ◽  
Long Chen ◽  
Lingjun Chou ◽  
Xiaolai Wang
Keyword(s):  
Carbon Nanotube ◽  
Facile Synthesis ◽  
Pd Nanoparticle ◽  
Nanoparticle Catalysts ◽  
Image Position ◽  
Supported Pd

Abstract

scholarly journals The heat capacity of nitrogen chain in grooves of single-walled carbon nanotube bundles

2013 ◽  
Vol 39 (5) ◽  
pp. 441-445 ◽  
Author(s):  
M. I. Bagatskii ◽  
M. S. Barabashko ◽  
V. V. Sumarokov
Keyword(s):  
Heat Capacity ◽  
Carbon Nanotube ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Bundles

Disassembling Single-walled Carbon Nanotube Bundles by Dipole/Dipole Electrostatic Interactions

2005 ◽  
Vol 34 (9) ◽  
pp. 1218-1219 ◽  
Author(s):  
Bunshi Fugetsu ◽  
Wenhai Han ◽  
Noriaki Endo ◽  
Yuichi Kamiya ◽  
Toshio Okuhara
Keyword(s):  
Carbon Nanotube ◽  
Electrostatic Interactions ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Bundles

scholarly journals Pressure Effects on Single Wall Carbon Nanotube Bundles

2001 ◽  
Vol 223 (2) ◽  
pp. 479-487 ◽  
Author(s):  
P.V. Teredesai ◽  
A.K. Sood ◽  
S.M. Sharma ◽  
S. Karmakar ◽  
S.K. Sikka ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Pressure Effects ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Nanotube Bundles
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