RT info:eu-repo/semantics/article
T1 Role of interface in multilayered composites under irradiation: A mathematical investigation
A1 Ortún Palacios, Jaime
A1 Locci,  Antonio Mario
A1 Fadda, Sarah .
A1 Delogu, Francesco
A1 Cuesta López, Santiago
AB A continuum model of point-defects evolution during irradiation of a multilayer composite material is presented in this work. Nonstationary balance equations are used to describe production, recombination, transport, and annihilation, or removal, of vacancies and interstitials in a β-α-β three-layer system (α = Cu and β = Nb, V, or Ni). In addition, transport and trapping of point-defects at interfaces are taken into account. Numerical investigation on similarities and differences between Cu/Nb, Cu/V, and Cu/Ni systems is also performed. A general comparison of model results reveals that average vacancy concentration is typically higher than SIA one in both layers for all the systems investigated. This is a consequence of the higher diffusion rate of SIAs with respect to vacancies. Stationary state is reached without saturating interface point-defect traps by all systems but Cu/Ni for the case of SIAs. It can be also seen that Cu/Nb and Cu/V systems have a very similar behavior regarding point-defect temporal evolution in copper (layer α), while higher SIA concentration at steady state is shown therein by the Cu/Ni structure. Moreover, Cu/V system displays the lower stationary vacancy concentration in layer β.
PB Hindawi Publishing Corporation
SN 1687-8434
YR 2017
FD 2017
LK http://hdl.handle.net/10259/4763
UL http://hdl.handle.net/10259/4763
LA eng
NO European Social Fund,Operational Programme of Castilla y Le´on, and Junta deCastilla y Le´on, through theMinistry of Education, as well asby the EuropeanUnion Framework Programme 7,MultiscaleModelling and Materials by Design of Interface-ControlledRadiation Damage in Crystalline Materials (RADINTERFACES)under Grant Agreement no. 263273
DS Repositorio Institucional de la Universidad de Burgos
RD 24-nov-2024