On the atomic structure of the Nb/Al2O3 interface and the growth of Al2O3 particles
Source abstract
Abstract
The growth mechanism for small precipitates of Al2O3 formed by internal oxidation in the Nb–Al2O3 interface is studied in detail. The observations show that the Nb (001)/Al2O3 (00.1) interface is almost atomically flat and that there are no interface compounds. We suggest that the final layer on the Al2O3 side of this interface consists of oxygen atoms. The effects of image forces on misfit dislocations are found to result in a standoff distance between dislocation cores and the interface, in good agreement with the recent theory. The implications of this for the strength of metal-ceramic bonding are discussed.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties
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References (10)
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