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Peierls-Nabarro modeling of dislocations in UO₂

Skelton, Richard; Walker, Andrew M.


Under conditions of high stress or low temperature, glide of dislocations plays an important role in the deformation of UO₂. In this paper, the Peierls-Nabarro model is used to calculate the core widths and Peierls stresses of ½<110> edge and screw dislocations gliding on {100}, {110}, and {111}. The energy of the inelastic displacement field in the dislocation core is parameterized using generalized stacking fault energies, which are calculated atomistically using interatomic potentials. We...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Journal of Nuclear Materials
DOI: 10.1016/j.jnucmat.2017.08.024
Access Rights: Open Access


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