Cr-Ta multilayers as a potential coating material for fuel cladding in Gen III and Gen IV nuclear plants - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Conference Papers Year : 2017

Cr-Ta multilayers as a potential coating material for fuel cladding in Gen III and Gen IV nuclear plants

Mamour Sall
Alain Billard

Abstract

The development of nuclear energy is dependent on the elaboration of advanced materials tolerant to irradiation by high energy neutrons and to gas accumulation (He and/or H transmutation products under neutron irradiation) at high temperature. In this context, research focused on nanostructured materials with multiple interfaces (grain and phase boundaries) acting as (i) defect sinks that contribute to reduce the effects of accumulated radiation damage; (ii) and as traps for implanted species such as helium. Multilayer systems allow well-controlled high density of interfaces (i.e. smalllayer thickness) to reduce the diffusion distance for defects to move from their original location to the nearest sink, thus considerably limiting their transformation into stable aggregates. Previous studies show high tolerance of multilayer systems to helium implantation-the most performant systems can store helium up to 20 at. %. Nevertheless, their behavior under heavy ion irradiation, representative of nuclear reactor neutron irradiation is very less studied.
Fichier principal
Vignette du fichier
Sall_EMR_2017.pdf (734.25 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-02340852 , version 1 (31-10-2019)

Identifiers

  • HAL Id : cea-02340852 , version 1

Cite

Mamour Sall, Marie Loyer-Prost, Céline Cabet, Alain Billard, Hicham Khodja. Cr-Ta multilayers as a potential coating material for fuel cladding in Gen III and Gen IV nuclear plants. EMR 2017, Apr 2017, Lisbon, Portugal. ⟨cea-02340852⟩
39 View
9 Download

Share

Gmail Facebook X LinkedIn More