Effect of Addition TiO<sub>2</sub> on Bi<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>-B<sub>2</sub>O<sub>3</sub> Glasses
K. KirdsiriN. SrisittipokakunY. RuangtaweepK. BooninPichet LimsuwanJ. Kaewkhao
Abstract
Bismuth titanium borate glasses in compositions xTiO 2 : (30-x)Bi 2 O 3 : 70B 2 O 3 (with x is in mol%, varying from 0% to 10%) were fabricated by the conventional melt quenching technique. The effect of TiO 2 on the physical and spectroscopic properties of bismuth borate glasses have been carried out by means of density and UV-Visible spectroscopy measurement techniques. The density and molar volume of all glasses are found to change depend on TiO 2 substitution. The fundamental absorption edges for all glasses have been identified using the theory proposed by Davis and Mott. The optical band gap (E g ) is found to decrease with increase in TiO 2 content.
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