UTILIZATION OF INFRARED-SPECTROSCOPY TO DETERMINE THE FRACTION OF THE4 COORDINATED BORONS IN BORATE GLASSES

Authors
MOUSTAFA YM DOWEIDAR H ELDAMRAWI G
Citation
Ym. Moustafa et al., UTILIZATION OF INFRARED-SPECTROSCOPY TO DETERMINE THE FRACTION OF THE4 COORDINATED BORONS IN BORATE GLASSES, Physics and Chemistry of Glasses, 35(2), 1994, pp. 104-106
Citations number
18
Categorie Soggetti
Material Science, Ceramics","Chemistry Physical
Journal title
Physics and Chemistry of Glasses → ACNP
ISSN journal
00319090
Volume
35
Issue
2
Year of publication
1994
Pages
104 - 106
Database
ISI
SICI code
0031-9090(1994)35:2<104:UOITDT>2.0.ZU;2-Z
Abstract
B-11 NMR and ir spectral measurements have been carried out for xFe2O3 .(50-x)PbO.50B2O3 glasses (2.5 less-than-or-equal-to x less-than-or-eq ual-to 15 mol%). The fraction, N4, of the four coordinated boron ions decreases with increasing x denoting the increase of nonbridging oxyge n ions in the borate network. The infrared spectra have been deconvolu ted, N4 values could be calculated from the normalised area of the com ponent bands.