Some Physical Properties of Li2O-TiO2-TeO2 and BaO-TiO2-TeO2 Glasses

Jitka Ozdanova; Helena Ticha; Ladislav Tichy

doi:10.4028/www.scientific.net/AMR.39-40.185

Paper Titles

Basicity-Gibbs Free Energy Relationships for Binary Alkali Silicates
p.169

Structure and Properties of Selected Zirconia Silicate Glasses
p.173

Thermal Stability and Microstructure of Glasses and Glass-Ceramics in the System La₂O₃-PbO-MnO-B₂O₃
p.177

Study of Lithium-Lead Phosphate and Borophosphate Glasses
p.181

Some Physical Properties of Li₂O-TiO₂-TeO₂ and BaO-TiO₂-TeO₂ Glasses
p.185

Y₂O₃ – Al₂O₃ Binary Glass Microspheres: Synthesis and Characterisation
p.189

Correlation of Surface Characteristics and Thermal Conductivity of High Silica Glass Fibre Materials
p.193

Convolution Models for the Dielectric Function of Glass
p.199

Magnetic Properties of Amorphous Fe₂O₃-R₂O₃ (R=La, Gd and Tb) Thin Films Fabricated by Sputtering Method
p.207

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Some Physical Properties of Li₂O-TiO₂-TeO₂ and BaO-TiO₂-TeO₂ Glasses

Abstract:

Homogeneous yellowish and well transparent glasses (Li2O)x(TiO2)x(TeO2)1-2x and (BaO)x(TiO2)x(TeO2)1-2x , (x = 0.075, 0.1, 0.125) were prepared from corresponding oxides (purity 99+%). For prepared glasses the optical gap values were found in the region 3.2 eV – 3.4 eV and the temperature (T) coefficient of the optical gap (γ) varies in the narrow region 5.3×10-4 eV/K to 5.9×10-4 eV/K for 300 K < T < 580 K. Estimated values of non-linear refractive index (n2) were found in the region n2 [m2W-1] = 2.7×10-18 – 3.5×10-18 close to n2 values for similar glasses. Raman spectra measured indicate that connectivity of (BaO)x(TiO2)x(TeO2)1-2x network is more evolved than that one for (Li2O)x(TiO2)x(TeO2)1-2x glasses. TiO2 most probably assists to continuous network formation due to appearance of Te-O-Ti bridges.