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Thermal Diffusivity Measurement in Solids by means of the Photoacoustic Technique

  • José B. Rojas-Trigos (a1), A. Calderón (a1) and E. Marín (a1)

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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  • EISSN: 1946-4274
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