FTIR transmission spectra have been carried out for glasses in composition form x= 20, 25, 30, 35 and 40 mole % .The most active peaks were observed in the region from 600 cm -1 to 1200 cm -1 .The first five peaks were centered in the ranges: 600 -620 cm -1 , 696-699 cm -1 , 779-800 cm -1 , 837-862 cm -1 and 894 -929 cm -1 .The last three peaks were observed in the absorption regions: 940 -953 cm ...
FTIR transmission spectra have been carried out for glasses in composition form x= 20, 25, 30, 35 and 40 mole % .The most active peaks were observed in the region from 600 cm -1 to 1200 cm -1 .The first five peaks were centered in the ranges: 600 -620 cm -1 , 696-699 cm -1 , 779-800 cm -1 , 837-862 cm -1 and 894 -929 cm -1 .The last three peaks were observed in the absorption regions: 940 -953 cm ...