Vibration behavior and mechanical properties of carbon nanotube junction

Abstract

Two carbon nanotubes with different diameters can form a carbon nanotube junction, which can be applied to build some electromechanical devices such as semiconductors, nano-nuzzles, and nano-diffusers. In this research, two zigzag carbon nanotubes with chiral vector (5, 0) and (10, 0) were considered and their mechanical properties were obtained from the molecular mechanic approach. Then, Special algorithm was used to connect latter CNTs. To model this junction molecular mechanic approach was applied. In the next step, mechanical properties and natural frequencies of the connected carbon nanotubes were measured. In this research, it was found that there is a remarkable increase in Young modulus of carbon nanotube junction. Furthermore, natural frequencies of connected carbon nanotubes, plus primary carbon nanotubes were compared together. Moreover, considering the same boundary conditions with primary carbon nanotubes, it was revealed that connected carbon nanotubes have different vibration behaviors. Copyright © 2013 American Scientific Publishers All rights reserved.