Structural and volume changes and their correlation in electron irradiated alkali silicate glasses

0510471 - FZÚ 2020 RIV NL eng J - Journal Article
Gavenda, T. - Gedeon, O. - Jurek, Karel
Structural and volume changes and their correlation in electron irradiated alkali silicate glasses.
Nuclear Instruments & Methods in Physics Research Section B. Roč. 397, Apr (2017), s. 15-26. ISSN 0168-583X. E-ISSN 1872-9584
R&D Projects: GA ČR(CZ) GA15-12580S
Institutional support: RVO:68378271
Keywords : silicate glass * electron irradiation * volume changes * Raman spectroscopy * three-membered rings
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.323, year: 2017
Method of publishing: Limited access
https://doi.org/10.1016/j.nimb.2017.02.026

Two binary alkali silicate glasses K15 and Li15 were irradiated by 50 keV electron beams with doses within the range of 2.1–15.9 kC/m2. Volume changes induced by electron irradiation were monitored by means of Atomic Force Microscopy (AFM). Raman spectra were taken from the irradiated spots to observe structural changes. Volume compaction observed at lower doses was correlated with the increase of the D2 peak. Volume expansion at higher doses was related to migration of alkali ions. Irradiated glasses were annealed for 60 min. After annealing irradiated spots were again examined by AFM and Raman spectroscopy in order to determine volume and structural relaxation of radiation induced changes.

Permanent Link: http://hdl.handle.net/11104/0300944