Please use this identifier to cite or link to this item:
|Title:||Diffusion of Helium in Non-stoichiometric Uranium Dioxide|
|Authors:||YAKUB E.; RONCHI C.; STAICU Dragos|
|Citation:||JOURNAL OF NUCLEAR MATERIALS vol. 400 no. 3 p. 189-195|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in periodicals and books|
|Abstract:||Diffusion coefficients of helium in solid UO2+x at high temperature and various stoichiometric compositions are evaluated by using molecular dynamics simulations based on a partly-ionic model in conjunction with a polaron ¿Free Hopping Approximation¿ proposed earlier. The results are compared with existing experimental and simulation data. A strong dependence of the apparent diffusion activation energy on stoichiometry is found and the mechanisms of He migration in non-stoichiometric solid UO2+x are discussed.|
|JRC Institute:||Institute for Transuranium Elements|
Files in This Item:
There are no files associated with this item.
Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.