A novel approach for determining thermal properties of single-walled carbon nanotubes

被引：14
作者：
Mir, Massoud [1 ]
Ebrahimnia-Bajestan, Ehsan [2 ]
Niazmand, Hamid [2 ]
Mir, Mahdi [3 ]
机构：
[1] Quchan Inst Engn & Technol, Dept Mech Engn, Quchan, Iran
[2] Ferdowsi Univ Mashhad, Dept Mech Engn, Mashhad, Iran
[3] Sadjad Inst Higher Educ, Dept Elect Engn, Mashhad, Iran
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2012年 / 63卷
关键词：
Carbon nanotubes; Chirality; Continuum model; Thermal conductivity; Specific heat capacity; TEMPERATURE-DEPENDENCE; CONDUCTIVITY;
D O I：
10.1016/j.commatsci.2012.05.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a continuum model is presented to investigate the thermal properties of carbon nanotubes (CNTs). The proposed model considers each carbon-carbon (C-C) bond in CNT as a continuum solid element. The thermal properties of the CNTs can be calculated simply by computing the thermal properties of these solid elements. Considering a thermal resistance for each continuum solid element (C-C bond), equivalent thermal resistance of CNTs can be obtained which is used to determine the thermal conductivity of CNT. In order to find the thermal properties of C-C bond, Debye model has been utilized to calculate the specific heat capacity and thermal conductivity. Then, extended calculations have been carried out to study the thermal conductivity of armchair nanotube (10,10) and its variations with temperature. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：52 / 57
页数：6
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