Cation doped zirconium oxynitrides (for example zirconium oxide doped with yttrium oxide and nitrogen, 'YZrON'), having a fluorite-based structure, were suggested to have fairly high N diffusivity, besides their high O mobility. In the present work, the tracer-diffusion of N and O was measured in single crystalline 'YZrON'. Results were compared to the migration pathways and migration enthalpies of N and O ions as determined by elastic neutron diffraction studies. Excellent agreement of the measured activation enthalpies of N diffusion (about 2eV) and O diffusion (about 1eV) determined by the two methods was found.

Fast Anion-Conduction in Oxynitrides - Oxygen and Nitrogen Transport in (Y, Zr)-(O, N). M.Kilo, M.A.Taylor, G.Borchardt, I.Kaiser-Bischoff, H.Boysen, C.Rödel, M.Lerch: Diffusion Fundamentals, 2008, 8, 8.1