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For powders of oxide-ion conductors based on Al/Fe- doped lanthanum silicates as well as Sc+Ce-doped zirconia, the temperature –programmed exchange with C 18 O 2 in the SSITKA mode was applied for estimation of the oxygen self-diffusion coefficients D o . Comparison with results obtained for dense ceramics of these electrolytes using SIMS isotope profiling and conductivity...
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