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2010
ACL
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M.T.Ta, J.Y.Rolland, P.Echegut, B.Rousseau, M.Zaghrioui, F.Giovannelli, H.Gomart, P.Lenormand, F.Ansart, 'Prediction of thermal radiative properties (300–1000 K) of La2NiO4+δ ceramics', Appl. Phys. Lett. 97 181917-181919 (2010) doi:10.1063/1.3511344
A multiscale numerical model is developed to predict the thermal radiative properties (TRP) of rough La2NiO4+δ coatings. The model integrates intrinsic and extrinsic contributions related to the chemical composition and the texture, respectively. High-temperature infrared reflectivity and thermogravimetric measurements on a La2NiO4+δ single crystal make it possible to understand the role of the excess oxygen in the intrinsic TRP. We show that dense ceramics with thicknesses higher than 4 μm are optically thick, and that one can adjust the surface roughness parameters to predict their TRP
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