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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.46 [2008] >
IJPAP Vol.46(04) [April 2008] >
| Title: | UV-visible, infrared and Raman spectroscopic and thermal studies of tungsten doped lead borate glasses and the effect of ionizing gamma irradiation |
| Authors: | El-Kheshen, Amany A
El-Batal, Fatma H. |
| Keywords: | UV-visible
Raman spectra
Lead borate glasses
Tungsten
Gamma radiation |
| Issue Date: | Apr-2008 |
| Publisher: | CSIR |
| Abstract: | Ultraviolet-visible, infrared and Raman spectroscopy together with thermal properties were measured for undoped and WO₃ – doped (up to 10%) lead borate glasses. Also, the effect of gamma irradiation was followed by UV-visible measurements. The UV-visible spectrum of the undoped glass reveals before irradiation intense ultraviolet bands due to the combined effects of trace iron impurities (Fe³⁺) and Pb²⁺ ions which remain unchanged with the addition of WO₃. Infrared and Raman measurements show characteristic bands due to borate group and the possible sharing of lead-oxygen and tungsten-oxygen groups. The studied glasses show obvious resistance to gamma irradiation. The thermal and density data are correlated with the introduction of highly polarizable and heavy (W⁶⁺) ions and to the change in structural arrangement with varying glass composition. |
| Page(s): | 225-238 |
| ISSN: | 0019-5596 |
| Source: | IJPAP Vol.46(04) [April 2008]
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