Effects of anisotropy, aspect ratio, and nonstraightness of carbon nanotubes on thermal conductivity of carbon nanotube composites

被引：207

作者：

Deng, Fei

Zheng, Quan-Shui ^{[1
]}

Wang, Li-Feng

Nan, Ce-Wen

机构：

[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 02期

关键词：

D O I：

10.1063/1.2430914

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Simple models for the thermal conductivity enhancements in carbon nanotube (CNT) composites are presented as analytical functions of volume fraction, anisotropic thermal conductivities, aspect ratio, nonstraightness, and interfacial thermal resistance of the CNTs. The model predictions agree very well with the measured thermal conductivities of CNT composites available in the literature. It is shown that using CNTs with higher aspect and straightness ratios is an efficient means to get much better thermal conductivity enhancements for CNT composites. The models are further extended to account the effects of either the random or aligned orientation of CNTs and the interaction among CNTs on thermal conductivity of CNT composites. (c) 2007 American Institute of Physics.

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相关论文

共 19 条

[1] Carbon nanotubes - the route toward applications [J].

Baughman, RH ;

Zakhidov, AA ;

de Heer, WA .

SCIENCE, 2002, 297 (5582) :787-792

[2] Carbon nanotube composites for thermal management [J].

Biercuk, MJ ;

Llaguno, MC ;

Radosavljevic, M ;

Hyun, JK ;

Johnson, AT ;

Fischer, JE .

APPLIED PHYSICS LETTERS, 2002, 80 (15) :2767-2769

[3] Thermal conductivity of carbon nanotubes [J].

Che, JW ;

Çagin, T ;

Goddard, WA .

NANOTECHNOLOGY, 2000, 11 (02) :65-69

[4] Effect of Kapitza contact and consideration of tube-end transport on the effective conductivity in nanotube-based composites [J].

Chen, TY ;

Weng, GJ ;

Liu, WC .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)

[5] Anomalous thermal conductivity enhancement in nanotube suspensions [J].

Choi, SUS ;

Zhang, ZG ;

Yu, W ;

Lockwood, FE ;

Grulke, EA .

APPLIED PHYSICS LETTERS, 2001, 79 (14) :2252-2254

[6] A further exploration of the interaction direct derivative (IDD) estimate for the effective properties of multiphase composites taking into account inclusion distribution [J].

Du, DX ;

Zheng, QS .

ACTA MECHANICA, 2002, 157 (1-4) :61-80

[7] Measuring the thermal conductivity of a single carbon nanotube [J].

Fujii, M ;

Zhang, X ;

Xie, HQ ;

Ago, H ;

Takahashi, K ;

Ikuta, T ;

Abe, H ;

Shimizu, T .

PHYSICAL REVIEW LETTERS, 2005, 95 (06)

[8] ANISOTROPY OF THERMAL CONDUCTANCE IN NEAR-IDEAL GRAPHITE [J].

HOOKER, CN ;

UBBELOHDE, AR ;

YOUNG, DA .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1965, 284 (1396) :17-+

[9] Interfacial heat flow in carbon nanotube suspensions [J].

Huxtable, ST ;

Cahill, DG ;

Shenogin, S ;

Xue, LP ;

Ozisik, R ;

Barone, P ;

Usrey, M ;

Strano, MS ;

Siddons, G ;

Shim, M ;

Keblinski, P .

NATURE MATERIALS, 2003, 2 (11) :731-734

[10]

KELLY BT, 1981, PHYS GRAPHITE, P227