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Finite Element Analysis of Nanoscale Thermal Measurements of Superlattices

Published online by Cambridge University Press:  11 February 2011

Jason R. Foley  and
C. Thomas Avedisian
Jason R. Foley
Affiliation:
Thermal Sciences Laboratory, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, 14853
C. Thomas Avedisian
Affiliation:
Thermal Sciences Laboratory, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, 14853
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Abstract

A finite element analysis applicable to two- and three-dimensional heat flow in samples of arbitrary geometry and composition is presented for use in a thermal wave experiment. The finite element formulation is summarized, including the use of symmetry to simplify the problem, and the governing differential equations for the heat transport are found to be in the form of the Helmholtz equation for the specific case of a modulated heat source. Simulated data for a Nb/Si superlattice is calculated using the finite element code and is shown to agree with predictions from an analytical model, validating the approach taken.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 739: Symposium H – Three-Dimensional Nanoengineered Assemblies , 2002 , H6.8
Copyright
Copyright © Materials Research Society 2003

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References

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