We present a new model for predicting thermal boundary conductance in the classical limit. This model takes a different form than those of the traditionally used mismatch theories in the fact that the temperature dependence of thermal boundary conductance is driven by the phononic scattering mechanisms of the materials comprising the interface as opposed to the heat capacities of those materials. The model developed in this work assumes that a phonon on one side of an interface may not scatter at the interface itself but instead scatter with phonons in the adjacent material via the scattering processes intrinsic in the adjacent material. We find that this model is in good agreement with classical molecular dynamics simulations of phonon transport across a Si/Ge interface.
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On the Linear Temperature Dependence of Phonon Thermal Boundary Conductance in the Classical Limit
John C. Duda,
John C. Duda
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904; Sandia National Laboratories
, Albuquerque, NM 87185
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Pamela M. Norris,
Pamela M. Norris
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904
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Patrick E. Hopkins
pehopki@sandia.gov
Patrick E. Hopkins
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Mechanical and Aerospace Engineering, University of Virginia
, Charlottesville, VA 22904
Search for other works by this author on:
John C. Duda
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904; Sandia National Laboratories
, Albuquerque, NM 87185
Pamela M. Norris
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904
Patrick E. Hopkins
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Mechanical and Aerospace Engineering, University of Virginia
, Charlottesville, VA 22904pehopki@sandia.gov
J. Heat Transfer. Jul 2011, 133(7): 074501 (4 pages)
Published Online: April 4, 2011
Article history
Received:
October 11, 2010
Revised:
January 26, 2011
Online:
April 4, 2011
Published:
April 4, 2011
Citation
Duda, J. C., Norris, P. M., and Hopkins, P. E. (April 4, 2011). "On the Linear Temperature Dependence of Phonon Thermal Boundary Conductance in the Classical Limit." ASME. J. Heat Transfer. July 2011; 133(7): 074501. https://doi.org/10.1115/1.4003575
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