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Accueil > Séminaires > Séminaires passés > Séminaires de 2009 > Structural relationships in complex oxides

Kurt Sickafus

Structural relationships in complex oxides

Mardi 26 mai 2009, à 10h30

In this presentation, a model will be introduced that is useful to readily visualize crystal structures and relationships between a variety of complex oxides. We will compare and contrast important structures such as spinel (MgAl2O4) with structures such as dioxide fluorites (MO2). Spinel-structured oxides are common on the oxidized surfaces of steels, while fluorite-structured oxides are common both to nuclear fuels (UO2+x) and to the oxidized surfaces of zircalloy (ZrO2-x). Fluorite-structured oxide particles are even found in oxide dispersion steel (ODS) alloys (Y2O3 particles).