Diffusion of Oxygen in Selected Monocrystalline Rare Earth Oxides
- 1 November 1968
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 51 (11) , 643-647
- https://doi.org/10.1111/j.1151-2916.1968.tb12636.x
Abstract
The diffusion of oxygen in monocrystalline ScaO3, YzO3, Dy,O2, HosO3, Er2O3, Tm2O2, and Lu2O3was measured by a thermobalance technique. The reoxidation of partially reduced crystals of these materials was treated as a diffusion‐controlled process with a moving boundary. Large diffusion coefficients and fairly low activation energies were found for this process, in agreement with a proposed migration mechanism which involves the inherently defective anion sublattice of these materials.Keywords
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