Open AccessTHERMAL CONDUCTANCE OF HELICALLY COILED CARBON NANOTUBES
Author(s) -
Zoran P. Popović,
Milan Damnjanović,
I. Milošević
Publication year - 2014
Publication title -
contemporary materials
Language(s) - English
Resource type - Journals
eISSN - 1986-8677
pISSN - 1986-8669
DOI - 10.7251/comen1401037p
Subject(s) - carbon nanotube , thermal conductivity , phonon , materials science , graphene , boltzmann equation , condensed matter physics , thermal , carbon fibers , relaxation (psychology) , dispersion relation , nanotechnology , thermodynamics , physics , composite material , psychology , social psychology , composite number
Thermal conductivity is one of the most interesting physical properties of carbon nanotubes. This quantity has been extensively explored experimentally and theoretically using different approaches like: molecular dynamics simulation, Boltzmann-Peierls phonon transport equation, modified wave-vector model etc. Results of these investigations are of great interest and show that carbon- based materials, graphene and nanotubes in particular, show high values of thermal conductivity. Thus, carbon nanotubes are a good candidate for the future applications as thermal interface materials. In this paper we present the results of thermal conductance s of a model of helically coiled carbon nanotubes (HCCNTs), obtained from phonon dispersion relations. Calculation of s of HCCNTs is based on the Landauer theory where phonon relaxation rate is obtained by simple Klemens-like model.