Abstract
Criteria are established for evaluating whether self-diffusion in a material may be occurring by a site-interchange diffusion mechanism. The criteria include comparisons between defect formation and migration energies for the site-interchange model and a normal vacancy diffusion model. These criteria are applied to some material systems to illustrate their utility. A siteinterchange diffusion mechanism is probably occurring in lithium niobate, but this mechanism is not operative in silicon carbide or in some III-V compound semiconductors.
Original language | English |
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Pages (from-to) | 1277-1279 |
Number of pages | 3 |
Journal | Journal of the American Ceramic Society |
Volume | 72 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 1989 |
Keywords
- Diffusion
- Lithium niobate
- Modeling
- Silicon carbide
- Stoichiometry
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry