Heavy ion Rutherford backscattering spectrometry (HIRBS) study of barium diffusion in borosilicate glass

Diffusion of barium in borosilicate glasses containing sodium and calcium has been studied using heavy ion Rutherford backscattering spectrometry (HIRBS) using 30MeV 19F beam. A thin layer (25μg/cm2) of BaCl2 was vacuum evaporated on the polished surface of the glass samples which were then annealed...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2008-02, Vol.266 (4), p.649-652
Main Authors: Kumar, Sumit, Mishra, R.K., Tomar, B.S., Tyagi, A.K., Kaushik, C.P., Raj, Kanwar, Manchanda, V.K.
Format: Article
Language:English
Subjects:
19F beam
Barium diffusion
Borosilicate glass
Heavy ion Rutherford backscattering spectrometry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Diffusion of barium in borosilicate glasses containing sodium and calcium has been studied using heavy ion Rutherford backscattering spectrometry (HIRBS) using 30MeV 19F beam. A thin layer (25μg/cm2) of BaCl2 was vacuum evaporated on the polished surface of the glass samples which were then annealed at different temperatures (573–723K) and subsequently subjected to HIRBS measurements. It was observed that introduction of 10mole% of calcium in place of sodium results in increase in the activation energy of diffusion of barium by about 30%. This indicates that alkaline earth ions retard the diffusion process in borosilicate glass. The results corroborate the data obtained on diffusion of sodium by radiotracer method. The results have been explained in terms of the increasing rigidity of the glass network with introduction of alkaline earth ions.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2007.12.062