Affordable Access

Raman spectra of indented pristine and irradiated sodium borosilicate glasses

Authors
  • KILYMIS, Dimitrios
  • FAIVRE, Annelise
  • MICHEL, Thierry
  • Peuget, Sylvain
  • Delaye, Jean-Marc
  • Delrieu, Julien
  • Ramonda, Michel
  • ISPAS, Simona
Publication Date
May 15, 2017
Source
HAL-UPMC
Keywords
Language
English
License
Unknown
External links

Abstract

In this work we have carried out variable-load indentation testing on three sodium borosilicate glassesand characterized the indentation imprints using Raman spectroscopy. The resulting analysis of thespectra helps describe the relative amount of densification and shear ow appearing in each glass, as wellas the different microstructural mechanisms that take place during deformation. Additionally, we showthat the two glasses that are relatively poor in sodium exhibit enhanced mixing of the silicate and borateunits after indentation. For the indentations performed using the highest load, we also acquired spectraby focusing at various depths below the imprint, in order to characterize the deformed region of theglasses and estimate its size. Similar experiments have been also carried out for one of the three glassesafter neutron irradiation, in order to study the effects of mechanical deformation on its depolymerizedand swollen structure.

Report this publication

Statistics

Seen <100 times