Abstract
In porous ceramics used as thermal barriers, it is necessary to determine whether radiative heat transfer is significant compared to energy transport by conduction. In order to address this problem in a first approach only radiative heat transfer is considered through an isothermal semi-transparent ceramic. The emphasis is placed here on the method to estimate the radiative properties. It is based on an identification technique that combines spectrometric emission power measurements at high temperature together with a Backward Monte Carlo Method (BMCM).Absorption and scattering spectral coefficients of a SiO2 fibrous ceramic are presented as an example of the output of the technique.
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