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Article Dans Une Revue Journal de Physique IV Proceedings Année : 1993

Non-destructive characterization of refractories by mirage effect and photothermal microscopy

G. Savignat
  • Fonction : Auteur
P. Boch
  • Fonction : Auteur
L. Pottier
  • Fonction : Auteur
D. Vandembroucq
D. Fournier
  • Fonction : Auteur

Résumé

In this paper we will demonstrate how thermal waves have turned out to be a good probe for the thermal parameter determination, at various spatial scales for heterogeneous materials such as ceramics. After the detailed description of the two setups we have used (mirage and photothermal microscope), we will explain how to proceed to achieve theoretical calculations either in a 1D geometry or in a 3D one. Then, we will illustrate our purpose with examples of refractory studies. Because these samples are porous and multiphase materials, they have to be investigated at macroscopic scale as well as at a microscopic scale. Finally, we will show results on the temporal behaviour of heat diffusion which can reveal how heat diffuses inside the sample.

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jpa-00251828 , version 1 (04-02-2008)

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G. Savignat, P. Boch, L. Pottier, D. Vandembroucq, D. Fournier. Non-destructive characterization of refractories by mirage effect and photothermal microscopy. Journal de Physique IV Proceedings, 1993, 03 (C7), pp.C7-1267-C7-1272. ⟨10.1051/jp4:19937195⟩. ⟨jpa-00251828⟩

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