Abstract
Two independent methods, the isotope method based on nuclear microanalysis and the method based on measuring the electronic-conductivity activation energy, are used to determine the grain-boundary diffusion and volume diffusion of an oxygen isotope 18O in a polycrystalline lithium-titanium ferrite at the thermal annealing temperature 1073 K. A comparative analysis is conducted of the potential of the methods in studying oxygen diffusion in the material concerned. It is shown that the technique for obtaining the diffusion parameters from the electronic conductivity measurements allows a comparatively precise determination of both the volume and grain-boundary diffusion coefficients of oxygen in polycrystalline ferrites.
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Surzikov, A.P., Lysenko, E.N., Ghyngazov, S.A. et al. Determination of the Oxygen Diffusion Coeficient in Polycrystalline Li-Ti Ferrites. Russian Physics Journal 45, 989–996 (2002). https://doi.org/10.1023/A:1022862900424
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DOI: https://doi.org/10.1023/A:1022862900424