Thermal conductivity of composites with nanoscale inclusions and size-dependent percolation

被引：16
|
作者：
Liang, L. H. [1 ,2 ]
Wei, Y. G. [1 ]
Li, Baowen [2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
[2] Natl Univ Singapore, Dept Phys & Ctr Computat Sci & Engn, Singapore 117542, Singapore
[3] NUS Grad Sch Integrat Sci & Engn, Singapore 117597, Singapore
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 36期
关键词：
30;
D O I：
10.1088/0953-8984/20/36/365201
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
An analytical model for thermal conductivity of composites with nanoparticles in a matrix is developed based on the effective medium theory by introducing the intrinsic size effect of thermal conductivity of nanoparticles and the interface thermal resistance effect between two phases. The model predicts the percolation of thermal conductivity with the volume fraction change of the second phase, and the percolation threshold depends on the size and the shape of the nanoparticles. The theoretical predictions are in agreement with the experimental results.
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页数：4
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