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Prediction of thermal radiative properties (300–1000 K) of La2NiO4+δ ceramics

Ta, Minh Tri and Rolland, Julien-Yves and Echegut, Patrick and Rousseau, Benoit and Zaghrioui, Mustapha and Giovannelli, Fabien and Gomart, Hector and Lenormand, Pascal and Ansart, Florence Prediction of thermal radiative properties (300–1000 K) of La2NiO4+δ ceramics. (2010) Applied Physics Letters, vol. 97 (n° 18). pp. 181917-1. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.3511344

Abstract

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.

Item Type:Article
Additional Information:Thanks to American Institute of Physics editor. The definitive version is available at http://www.aip.org/ The original PDF of the article can be found at Applied Physics Letters website : http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4816218
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA
French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Ecole Centrale de Paris (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Other partners > Université François-Rabelais de Tours (FRANCE)
Laboratory name:
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Deposited By:Leila Abdelouhab

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