Thermal conductivity modeling of compacted type nanocomposites

機構典藏 > College of Engineering > Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering > Journal Article > Item 987654321/50524

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Title:	Thermal conductivity modeling of compacted type nanocomposites
Authors:	Hsieh, Tse-yang;Yang, Jaw-yen;Hong, Zuu-chang
Contributors:	淡江大學機械與機電工程學系
Keywords:	Boltzmann equation;germanium;nanocomposites;nanoparticles;nanowires;phonons;silicon;thermal conductivity
Date:	2009-07
Issue Date:	2010-08-09 19:19:18 (UTC+8)
Publisher:	College Park: American Institute of Physics (AIP)
Abstract:	Due to different interface densities and arrangements, the compacted type nanocomposites may yield even lower thermal conductivity than embedded type nanocomposites. In this paper, the phonon transport and thermal conductivity in compacted type nanocomposites (nanowires and nanoparticles) are investigated using a deterministic phonon Boltzmann transport equation solver. The effects of interface density and characteristic size on the phonon energy transport in nanocomposites are studied. It is found that the silicon-germanium compacted nanoparticle composites can have lower value of thermal conductivity than that of compacted nanowire composites under the same characteristic size (21.6% lower when the characteristic size is 3 nm).
Relation:	Journal of Applied Physics 106(2), pp.023528(7 pages)
DOI:	10.1063/1.3182803
Appears in Collections:	[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

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