Conditions Extrêmes et Matériaux : Haute Température et Irradiation

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J.Colas, L.Charpentier, D.Chen, E.Bêche, J.Esvan, D.De Sousa Meneses, F.Mercier, M.Pons, M.Balat-Pichelin, 'Oxidation and high-temperature radiative properties of the Kanthal Super ER intermetallic alloy', Corrosion Science 189 109601 (2021) doi:10.1016/j.corsci.2021.109601

The oxidation resistance of receivers is a critical point in the development of plants using solar tower technology. Intermetallics in MoSiAl system present oxidation maximum temperature and creep resistance superior to the ones of the currently used Ni-based alloys. We followed here the oxidation resistance of such intermetallic exposed to different treatments in air: long-term oxidation (up to 700 h) at 1373 K, and for several cycles of 20 min in solar furnace. The normal spectral emissivity is measured up to 1640 K in air, and our main positive conclusion is this property is not degraded by the oxidation.