Eur. Phys. J. AP
Volume 23, Number 3, September 2003
|Page(s)||207 - 211|
|Section||Instrumentation and Metrology|
|Published online||10 April 2003|
Thermal characterization of semi-transparent media: measurement of phononic diffusivity of glass and silica*
Équipe de Recherche en Mécanique et Plasturgie ERMeP,
InSIC Institut Supérieur d'Ingénierie de la Conception,
27 rue d'Hellieule,
88100 Saint Dié des Vosges,
2 Laboratoire d'Énergétique et de Mécanique Théorique et Appliquée, UMR-CNRS 7563, Institut National Polytechnique de Lorraine, 54516 Vandœuvre-lès-Nancy, France
Corresponding author: firstname.lastname@example.org
Revised: 12 November 2002
Accepted: 23 January 2003
Published online: 10 April 2003
Materials such as glasses, insulated foams, polymers are semi-transparent. In order to measure the phononic diffusivity of such media – in which the heat transfer is both conductive and radiative – it is necessary to develop a complete methodology. The technique, we propose here, is an extension of the Flash method with the use of a semi-analytical combined model. It permits to determine the diffusivity of materials such as glass and silica for a large range of temperature (from 300 K to 700 K).
PACS: 44.05.+e – Analytical and numerical techniques / 65.60.+a – Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc. / 81.70.-q – Methods of materials testing and analysis
© EDP Sciences, 2003
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