Oxygen Diffusion and Surface Exchange in Yttria-Stabilized Zirconia and Gadolinia-Doped Ceria Ceramics at Low Temperatures

Kazimierz Kowalski

doi:10.4028/www.scientific.net/DDF.289-292.769

Paper Titles

Concentration Characteristics of Diffusion-Induced Recrystallization
p.719

Jump Frequencies of Cd Tracer Atoms in L1₂ Lanthanide Gallides
p.725

Computer Simulation of Diffusion in Dilute Al-Fe Alloys
p.733

Following the First Steps of UV Degradation of High Density Polyethylene by Fluorescence Spectroscopy
p.741

First-Principle Calculation of Monovacancy and Divacancy Interactions with Atomic Oxygen in Nickel: Thermal Expansion Effects
p.747

Motion of Cadmium Tracer Atoms in Al₁₁R₃ Phases (R=La,Ce,Pr)
p.755

Determination of Grain Boundary Diffusion Coefficients in C-Regime by Hwang-Balluffi Method: Silver Diffusion in Pd
p.763

Oxygen Diffusion and Surface Exchange in Yttria-Stabilized Zirconia and Gadolinia-Doped Ceria Ceramics at Low Temperatures
p.769

Doping Effect in Nickel Oxide
p.775

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Oxygen Diffusion and Surface Exchange in Yttria-Stabilized Zirconia and Gadolinia-Doped Ceria Ceramics at Low Temperatures

Abstract:

Oxygen self-diffusion and oxygen surface exchange investigations in the yttria-stabilized zirconia (3 and 8 mol% of Y2O3) and in the gadolinia-doped ceria (10 and 20 mol% of Gd2O3) ceramics in the temperature range from 250 to 450°C were performed by means of the 18O isotopic labeling and the SIMS profiling methods. The activation energies of these processes were determined. The results were discussed in comparison with the literature data extrapolated from higher temperatures.