Spectroscopic properties of gamma irradiated TiO2 doped lithium phosphate glasses

被引：17
|
作者：
Ghoneim, N. [1 ]
Marzouk, M. [1 ]
Daoud, T. [2 ]
Ezzeldin, F. [3 ]
机构：
[1] Natl Res Ctr, Dept Glass Res, Cairo 12622, Egypt
[2] MSA Univ, October Univ Modern Sci & Arts, 6 October City 12611, Cairo, Egypt
[3] Natl Inst Radiat Res & Technol, Nasr City 11371, Cairo, Egypt
来源：
INDIAN JOURNAL OF PHYSICS | 2013年 / 87卷 / 01期
关键词：
Lithium phosphate glass; TiO2; Gamma irradiation; Optical; FTIR spectra; TRANSITION-METAL IONS; BORATE GLASSES; RAY INTERACTION; INDUCED DEFECTS; TRANSMISSION; SPECTRA; CONDUCTIVITY; IRON; CRYSTALLIZATION; CERAMICS;
D O I：
10.1007/s12648-012-0177-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical absorption spectra of undoped and TiO2-doped lithium phosphate glasses were measured before and after successive gamma irradiation. Undoped lithium phosphate glasses show strong UV absorption, while TiO2-doped samples exhibit surplus two broad visible bands due to the presence of Ti3+ ions in predominant ratio. Gamma irradiation produces UV and visible induced bands but the presence of TiO2 seems to cause some shielding effects towards successive gamma irradiation. Infrared absorption spectral measurements indicate the presence of characteristic phosphate groups and the effect of gamma irradiation is limited to small changes in the intensities of some absorption bands. The experimental results are interpreted on the bases of current views on the structure of the studied host glass in relation to properties studied.
引用
收藏
页码：39 / 47
页数：9
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