Cation Self‐Diffusion in Cr2O3
- 1 November 1983
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 66 (11)
- https://doi.org/10.1111/j.1151-2916.1983.tb10572.x
Abstract
Self‐diffusion of 51Cr was measured both parallel to and perpendicular to the c axis in single crystals of Cr2O3 as a function of oxygen partial pressure at 1490° and 1570°C. The oxygen‐partial‐pressure dependence of the diffusivity indicates that cation self‐diffusion occurs by a vacancy mechanism. The values of the self diffusion coefficients determined in this experiment are about 104 times smaller than those previously reported in this temperature range.Keywords
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