Abstract:Calculations are made to determine the electronic and elastic contributions to the interaction energy of a single hydrogen atom with a dislocation line in or-zirconium. The proton model with a screened Coulomb potential is employed, and the atomic configuration near the dislocation calculated using a modified Peierls-Nabarro model. Comparison with the case of a hydrogen atom in a normal tetrahedral interstitial site in or-zirconium shows that the elastic size effects are almost identical, but the dislocation s… Show more
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