Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 20, Issue 36, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/20/36/365201
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Funding
- Faculty Research Grant of NUS
- Chinese Academy of Sciences [KJCX2-YW-M04]
- NSFC [10721202, 10432050]
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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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