- Tytuł:
- Investigation of Infrared and Raman Spectra of $TeO_2-Nb_2O_5-TiO_2$ Glasses
- Autorzy:
-
Kabalci, İ.
Gökçe, H. - Powiązania:
- https://bibliotekanauki.pl/articles/1360392.pdf
- Data publikacji:
- 2014-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
42.70.Ce
61.05.Cp
82.80.Gk
78.30.Ly - Opis:
- X-ray diffraction, infrared (IR), Raman spectroscopy and scanning electron microscope techniques have been used to investigate the microstructural properties of the glass materials. In this work, a new type of tellurite based optical glasses with $TeO_2$/$Nb_2O_5$/$TiO_2$ for different $xNb_2O_5$ (x = 5, 10, 15, and 20 mol.%) glass compositions at constant 5 mol.% $TiO_2$ ratio were prepared. The effect of $Nb_2O_5$ contents on the structural unit of $(95-x)TeO_2-(x)Nb_2O_5-5TiO_2$ glass network, and the intensity ratios of the Raman peaks were investigated. The results indicate that for different $Nb_2O_5$ content 5 to 20 mol.% in the glass system, three vibrational peaks around 650, 800, and 920 $cm^{-1}$ which correspond to the structural bonding of the glass were observed in the range of 500-2000 $cm^{-1}$ for the IR spectra. Furthermore, from the Raman results a structural evolution was determined with the number of structural units such as $[NbO_6]^{7-}$, $TeO_{3+1}$ (polyhedra), $TeO_4$ (trigonal bipyramids), $TeO_3$ (trigonal pyramids) or $TeO_{3+1}$ (polyhedra), and $[NbO_4]^{3-}$ for this ternary glass system.
- Źródło:
-
Acta Physica Polonica A; 2014, 125, 4; 877-881
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł