Structural characterization of ZnCl{sub 2} modified tellurite based glasses
Journal Article
·
· AIP Conference Proceedings
- Guru Jambheshwar University of Science and Technology, Hisar (Haryana) – 125001 (India)
- Indira Gandhi University, Meerpur, Rewari (Haryana) -123401 (India)
- Maharishi Dayanand University, Rohtak (Haryana)-124001 (India)
- Rawal Institute of Engineering and Technology, Faridabad (Haryana)-121004 (India)
- Central University of Haryana, Mahendergarh (Haryana)-123029 (India)
Glass composition 70 TeO{sub 2}-(30-x) BaO – x ZnCl{sub 2}; x = 5, 10, 15, 20 and 25 have been prepared by rapid melt quenching technique under controlled atmospheric conditions. Amorphous nature of the samples was confirmed by x-ray diffractogram. The glass transition temperature (T{sub g}) has been determined using differential scanning calorimetry (DSC) and its value is observed to decrease with increase in ZnCl{sub 2} content. The peaks in the Raman and FTIR spectra have been estimated by deconvolutation of the spectra and each of deconvoluted spectra exhibits several peaks. IR and Raman spectra of the present glass system indicate that TeO{sub 2} exists as TeO{sub 3} trigonal pyramidal (tp), TeO{sub 4} trigonal bipyramidal (tbp) and TeO{sub 6} polyhedra structural units. With increase in zinc halide content, transformation of some of TeO{sub 4} structural units into TeO{sub 3} structural units is observed Increase in TeO{sub 3} structural units shows that non-bridging oxygen contribution increases which confirms the decrease in glass transition temperature.
- OSTI ID:
- 22606451
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1728; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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