Structural and optical properties of barium borosilicate glasses

The 40SiO2–30BaO–20B2O3–10A2O3 (A=Y, La, Al, Cr) glasses were synthesized by melt quenching at 1550 °C. Controlled crystallization was carried out to convert these glasses to corresponding glass ceramics. The amorphous nature of as prepared glasses was ascertained from XRD diffraction pattern. Fourier-transform infrared spectroscopy was done to find out the basic structural units in these glasses. The effect of intermediate oxides on optical properties was investigated using UV–Visible spectra.