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Thermal Diffusivity Measurement in Solids by means of the Photoacoustic Technique

Published online by Cambridge University Press:  01 February 2011

José B. Rojas-Trigos ,
A. Calderón  and
E. Marín
José B. Rojas-Trigos
Affiliation:
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, del Instituto Politécnico Nacional. Av. Legaria # 694 Col. Irrigación, C.P. 11500, México D.F. México
A. Calderón
Affiliation:
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, del Instituto Politécnico Nacional. Av. Legaria # 694 Col. Irrigación, C.P. 11500, México D.F. México
E. Marín
Affiliation:
Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, del Instituto Politécnico Nacional. Av. Legaria # 694 Col. Irrigación, C.P. 11500, México D.F. México
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Abstract

We report thermal diffusivity measurements for samples of silicon, gallium arsenide and cupper by means of the photoacoustic technique in a heat transmission configuration in order to obtain a comparison between the results obtained with the use of the conventional RG-model and our SP-model (based in a square periodical heat source) in the fitting process to the experimental data. Our results show that our SP-model is accurate to obtain a good fitting with the experimental data and it improves notably the results obtained with the RG-model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1242: Symposium 4 – Materials Characterization , 2009 , S4-33
Copyright
Copyright © Materials Research Society 2010

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References

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