Oxygen Self‐Diffusion in Single‐Crystal Y2O3
- 1 December 1983
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 66 (12) , C‐222-C‐223
- https://doi.org/10.1111/j.1151-2916.1983.tb11012.x
Abstract
Self‐diffusion coefficients of the oxygen ion in single‐crystal Y2O3 were determined by the gas‐solid isotope exchange technique. The results in the range 1100° to 1500°C are described by D=7.3 X 10‐6 exp [‐19l(kJ/mol)/RT] cm2/s. Comparison of the results with those for oxides with the fluorite‐type structure indicates that the regularly arranged vacant anion sites in the C‐type structure do not contribute eflectively to oxygen ion diffusion.Keywords
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