Effect of filler mass and binding on thermal conductivity of fully filled skutterudites
Name
Zebarjadi-2010-Effect of filler mas.pdf
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Author(s)
Zebarjadi, Mona
Esfarjani, Keivan
Yang, Jian
Ren, Z. F.
Chen, Gang
Date Issued
November 2010
Journal
Physical review B
Publisher
American Physical Society
Citation
Zebarjadi, Mona et al. “Effect of filler mass and binding on thermal conductivity of fully filled skutterudites.” Physical Review B 82.19 (2010) : n. pag. © 2010 The American Physical Society
Version
Final published version
Abstract
The relations between the thermal conductivity of cagelike structures and their crystal parameters are investigated using a two-dimensional toy model. The model consists of host atoms on a rectangular lattice with fillers at the center of each rectangle. The effect of mass and size of the filler on thermal conductivity is investigated using equilibrium molecular-dynamics simulations. We show that the thermal conductivity decreases with increasing atomic displacement parameter while it has local minima versus the filler to host mass ratio. Similar trends were observed in experiments on filled skutterudites. The trends are explained by analyzing the effect of the filler on the phonon dispersion and relaxation times of the host material.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.82.195207
