Thermal Diffusivity Measurement in Solids by means of the Photoacoustic Technique

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.

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Contreras, A., Sosa, E. & Espinosa-Medina, M.A. Thermal Diffusivity Measurement in Solids by means of the Photoacoustic Technique. MRS Online Proceedings Library 1242, 433 (2009). https://doi.org/10.1557/PROC-1242-S4-33

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