Thermal conductivity of deformed carbon nanotubes

TL;DR

This study examines how different deformations affect the thermal conductivity of carbon nanotubes using molecular dynamics simulations, revealing deformation-specific impacts on heat transfer properties.

Contribution

It provides a comparative analysis of thermal conductivity variations in deformed carbon nanotubes, highlighting effects of bending, XY-distortion, Z-distortion, and screw ratio.

Findings

Thermal conductivity is unaffected by bending angle.

Light increase in conductivity with XY-distortion.

Rapid decrease in conductivity with Z-distortion.

Abstract

We investigate the thermal conductivity of four types of deformed carbon nanotubes by using the nonequilibrium molecular dynamics method. It is reported that various deformations have different influence on the thermal properties of carbon nanotubes. For the bending carbon nanotubes, the thermal conductivity is independent on the bending angle. However, the thermal conductivity increases lightly with XY-distortion and decreases rapidly with Z-distortion. The thermal conductivity does not change with the screw ratio before the breaking of carbon nanotubes but decreases sharply after the critical screw ratio.