Positron annihilation lifetime study of Ag-ion exchanged and heat treated soda lime glass

Slabs of soda lime silica glass (15% Na 2O) were subjected to Ag +/Na + ion exchange process and subsequent heat treatment. The change in glass structure and Ag states accompanied with these processes were studied using the positron annihilation lifetime spectroscopy. The positron annihilation lifet...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2007-05, Vol.258 (2), p.352-356
Main Authors: Shaaban, M.H., Mahmoud, K.R., Sharshar, T., Ahmed, A.A.
Format: Article
Language:English
Subjects:
Ag-ion exchanged glass
Positron annihilation lifetime spectroscopy
Soda lime silica glass
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Summary:Slabs of soda lime silica glass (15% Na 2O) were subjected to Ag +/Na + ion exchange process and subsequent heat treatment. The change in glass structure and Ag states accompanied with these processes were studied using the positron annihilation lifetime spectroscopy. The positron annihilation lifetime measurements were performed with a fast–fast coincidence spectrometer employing a multi-parameter acquisition system. The lifetime parameters showed that the Ag + ion reduction process takes place through two processes; the oxidation reduction reaction with Fe 2+ impurities in the glass at heat treatment temperatures
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2007.01.289