Thermal transport in boron nitride nanotorus - Towards a nanoscopic thermal shield
Document Type
Article
Publication Date
11-14-2013
Abstract
Nanotori, or nanorings, are topological variants of nanotubes and are conceived to have different properties from their tubular form. In this study, the toroidal arrangement of boron nitride is introduced. Using classical molecular dynamics simulations, the thermal behaviour (thermal conductivity and thermal stability) of the boron nitride nanotorus and its relationship with the structural characteristics are investigated. Its circumferential thermal rectification strength displays a linear dependence on the bending coefficient of the nanostructure. Surface kinks are relatively inconsequential on its circumferential mode of conduction, as compared to its axial sense. The circumferential conductivity in the diffusive regime is calculated to be approximately 10 W/m K, while the axial conductivity is more than tenfold of this value. All nanotori with different toroidal characters show excellent thermal stability at extremely high temperatures approaching 3400 K. With consideration to its favourable properties, a thermal shield made up of a parallel row of nanotori is proposed as a nanoscale thermal insulation device. © 2013 AIP Publishing LLC.
Publication Title
Journal of Applied Physics
Recommended Citation
Loh, G.,
&
Baillargeat, D.
(2013).
Thermal transport in boron nitride nanotorus - Towards a nanoscopic thermal shield.
Journal of Applied Physics,
114(18).
http://doi.org/10.1063/1.4827866
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8968