Oxygen Tracer Diffusion in Single‐Crystal Alumina
Authors:
- 1 September 1991
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 74 (9) , 2086-2092
Abstract
Oxygen tracer diffusion coefficients are determined in single‐crystal alumina samples; with differing dopant levels using the gas‐exchange technique. The diffusion direction is parallel to the c ‐axis and the ambient P o 2 is 1 atm (10 5 Pa) for all experiments except a single run with a low P o 2 The diffusion is insensitive to both; impurities and ambient P o 2 The insensitivities are discussed in terms of point‐defect clustering. Prior tracer studies are compared and discussed.Keywords
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