Solid Oxide Fuel Cells (SOFCs) operate at temperaturesudabove 1,100 K where radiation effects can beudsignificant. Therefore, an accurate thermal model of an SOFCudrequires the inclusion of the contribution of thermal radiation. This implies that the thermal radiative properties of the oxide ceramics used in the design of SOFCs must be known. However, little information can be found in the literature concerning their operating temperatures. On the other hand, several types of ceramics with different chemical compositions and microstructures for designing efficient cells are now being tested. This is a situation where the use of a numerical tool making possible the prediction of the thermal radiativeudproperties of SOFC materials, whatever their chemicaludcomposition and microstructure are, may be a decisive help.udUsing this method, first attempts to predict the radiativeudproperties of a lanthanum nickelate porous layer depositedudonto an yttria stabilized zirconium substrate can be reported.
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