skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

An attempt to reproduce high burn-up structure by ion irradiation of SIMFUEL

Baranov, V.G. ; Lunev, A.V. ; Reutov, V.F. ; Tenishev, A.V. ; Isaenkova, M.G. ; Khlunov, A.V.

Journal of nuclear materials, 2014-09, Vol.452 (1-3), p.147-157 [Periódico revisado por pares]

Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    An attempt to reproduce high burn-up structure by ion irradiation of SIMFUEL
  • Autor: Baranov, V.G. ; Lunev, A.V. ; Reutov, V.F. ; Tenishev, A.V. ; Isaenkova, M.G. ; Khlunov, A.V.
  • É parte de: Journal of nuclear materials, 2014-09, Vol.452 (1-3), p.147-157
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Experiments in IC-100 and U-400 cyclotrons were conducted with SIMFUEL pellets (11.47wt.% of fission products simulators) to reproduce some aspects of the long-term irradiation conditions in epithermal reactors. Pellets were irradiated with Xe16+, Xe24+ and He+ at energies ranging from 20keV (He+) to 320keV (Xe16+) and 1–90MeV (Xe24+). Some samples were subsequently annealed to obtain larger grain sizes and to study defects recovery. The major microstructural changes consisted in grain sub-division observed on SEM and AFM images and change in composition registered by EPMA (pellets irradiated with 1–90MeV Xe24+ ions at fluence of 5×1015cm−2). Lattice distortion and increase in dislocation density is also noted according to X-ray data. At low energies and high fluences formation of bubbles (20keV He+ at 5.5×1017cm−2) was observed. Grain sub-division exhibits full coverage of the grain body and preservation of former grain boundaries. The size of sub-grains depends on local dislocation density and changes from 200nm to 400nm along the irradiated surface. Beneath it the size ranges from 150 to 600nm. Sub-grains are not observed in samples irradiated by low-energy ions even at high dislocation densities.
  • Editor: Elsevier B.V
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.