Microscale thermal characterization at temperatures up to 1000˚C by photoreflectance microscopy. Application to the characterization of carbon fibres

Denis Rochais (1) , Hélène Le Houëdec (1) , Franck Enguehard (1) , Julien Jumel (1) , François Lepoutre (2)

1 CEA Le Ripault - CEA Le Ripault
2 ONERA - The French Aerospace Lab [Châtillon]

Micrometric scale thermal diffusivity measurement by photoreflectance microscopy is now a well-known technique. Until now the experiments were performed essentially at room temperature. In this paper we explore temperature resolved tests. We describe the modifications introduced in the experimental setup and the procedure followed to determine the temperature dependent diffusivity. Different analysis methods are described and first tests performed on known materials and a C/C composite is presented.

Domaines: Thermique [physics.class-ph]

Denis Rochais, Hélène Le Houëdec, Franck Enguehard, Julien Jumel, François Lepoutre. Microscale thermal characterization at temperatures up to 1000˚C by photoreflectance microscopy. Application to the characterization of carbon fibres. Journal of Physics D: Applied Physics, 2005, 38 (10), pp.1498-1503. ⟨10.1088/0022-3727/38/10/002⟩. ⟨hal-01287446⟩