Passer à la navigation principale Passer à la recherche Passer au contenu principal

β irradiation in borosilicate glasses: The role of the mixed alkali effect

  • N. Ollier
  • , B. Boizot
  • , B. Reynard
  • , D. Ghaleb
  • , G. Petite
  • Laboratoire des Solides Irradiés
  • CNRS
  • Lab. Etudes du Comport. a Long Terme
  • CEA Marcoule, DTCD SECM

Résultats de recherche: Contribution à un journalArticle de conférenceRevue par des pairs

49 Citations (Scopus)

Résumé

Two series of mixed alkali borosilicate glasses have been studied (Na/K and Na/Li) in order to examine the mixed alkali effect influence on the structure evolution of β-irradiated glasses. In both glass series, paramagnetic defects concentration shows a non-linear variation with Na content. The defect nature is also affected and more particularly boron oxygen hole center versus oxygen hole center relative proportion. By Raman spectroscopy, we showed that polymerization increase and molecular oxygen production, linked to the alkali migration, were minimized for some irradiated glass compositions. Mixed alkali effect blocks structural changes under electron irradiation in Na/Li glasses while for Na/K glasses, structural evolutions are smaller than in pure alkali glasses but non-completely annihilated.

langue originaleAnglais
Pages (de - à)176-182
Nombre de pages7
journalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume218
Numéro de publication1-4
Les DOIs
étatPublié - 1 juin 2004
Modification externeOui
EvénementProceedings of the Twelfth International Conference on Radiation - Gramado, Brésil
Durée: 31 août 20035 sept. 2003

Empreinte digitale

Examiner les sujets de recherche de « β irradiation in borosilicate glasses: The role of the mixed alkali effect ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation