2024-03-28T21:03:38Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/55912023-03-31T12:15:38Zcom_10259_4759com_10259_2604col_10259_4760
Ortún Palacios, Jaime
407
500
0000-0001-7595-7390
Locci, Antonio Mario
2c597749-a53c-4bc2-a72a-f6010f790859
600
Delogu, Francesco
fc63ecfd-200d-46f6-af00-6ed6de879c01
500
Cuesta López, Santiago
133
500
0000-0002-7401-3889
2021-01-13T08:36:59Z
2021-01-13T08:36:59Z
2018-12
0022-3115
http://hdl.handle.net/10259/5591
10.1016/j.jnucmat.2018.10.030
Atomistic simulations have revealed an unconventional behavior of point defects at interfaces found in multilayer composites synthesized by physical vapor deposition but the observed mechanisms that involve point-defect annihilation are subject to time-scale limitations. So, a mathematical model that describes long-term evolution of point defects in such materials under irradiation is presented in this work. Firstly, the effect of interface point-defect trapping and recombination mechanisms on point-defect concentrations has been studied. In addition, the effect of interface self-interstitial atoms loading, which has been seen during collision cascades, and constitutional vacancies has been studied too. Two interface configurations have been considered between metals in a β-α-β three-layer system (α = Cu and β = Nb, or V), KSmin and KS1. These interfaces correspond to ground-state and defect-free KS structures respectively. The respond to irradiation of the systems investigated here, Cu/Nb and Cu/V, depends on both, interface characteristics and bulk properties. Nonetheless, the influence of the properties of one metal in the point-defect evolution of the other metal is only effective if there are constitutional vacancies at the interface, i.e., for KSmin. Especial attention has been paid to the behavior of the same metal (Cu) when it is surrounded by diverse metals (Nb, or V) with the aim of comparing quantitatively our model predictions with experimental results reported elsewhere. The lower concentration of vacancies in Cu layer of Cu/Nb system at steady state is due to the low mobility of vacancies in niobium.
European Social Fund, Operational Programme of Castilla y León, and Junta de Castilla y León, through the Ministry of Education, as well as by the European Union Framework Programme 7, Multiscale Modelling and Materials by Design of Interface-Controlled Radiation Damage in Crystalline Materials (RADINTERFACES) under grant agreement no. 263273
application/pdf
eng
Elsevier
Journal of Nuclear Materials. 2018, V. 512, p. 391-406
https://doi.org/10.1016/j.jnucmat.2018.10.030
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Materia-Estructura
Materiales
Matter-Constitution
Materials
Self-healing ability assessment of irradiated multilayered composites: A continuum approach
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
Journal of Nuclear Materials
512
391
406
TEXT
Ortun-jnm_2018.pdf.txt
Ortun-jnm_2018.pdf.txt
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oai:riubu.ubu.es:10259/5591
2023-03-31 14:15:38.871
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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