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- Title
Crystal Structure of the ZrO Phase at Zirconium/Zirconium Oxide Interfaces.
- Authors
Nicholls, Rebecca J.; Ni, Na; Lozano‐Perez, Sergio; London, Andrew; McComb, David W.; Nellist, Peter D.; Grovenor, Chris R.M.; Pickard, Chris J.; Yates, Jonathan R.
- Abstract
Zirconium-based alloys are used in water-cooled nuclear reactors for both nuclear fuel cladding and structural components. Under this harsh environment, the main factor limiting the service life of zirconium cladding, and hence fuel burn-up efficiency, is water corrosion. This oxidation process has recently been linked to the presence of a sub-oxide phase with well-defined composition but unknown structure at the metal-oxide interface. In this paper, the combination of first-principles materials modeling and high-resolution electron microscopy is used to identify the structure of this sub-oxide phase, bringing us a step closer to developing strategies to mitigate aqueous oxidation in Zr alloys and prolong the operational lifetime of commercial fuel cladding alloys.
- Subjects
ZIRCONIUM alloys; ZIRCONIUM oxide; CRYSTAL structure; HIGH resolution electron microscopy; CORROSION of water-pipes
- Publication
Advanced Engineering Materials, 2015, Vol 17, Issue 2, p211
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.201400133