Effect of glasses melting temperature to bubbles size on Sb₂O₃ doped glasses

The physical and optical properties of the glasses system in compositions (35-x)SiO₂ : 30B₂O₃ : 15Na₂O :10CaO :10ZnO : xSb₂O₃ where x = 0.00, 0.05, 0.10, 0.50, 1.00 and 2.00 mol% were synthesized by using the melt-quenching technique and compared temperatures of 1000, 1100, 1200, 1300 and 1400 ºC. The results show that the density (ρ), molar volume (V_M) and refractive index (n) of glasses were tended to increase with increasing concentration of Sb₂O₃. On the opposite, when increasing melting temperature the result of the density (ρ), molar volume (V_M) and refractive index (n) of glasses were tended to decrease. The UV-Vis-NIR spectra of glasses were measured at the wavelength of 200-2000 nm. The number of bubbles in glasses tends to decrease with increasing concentration of Sb₂O₃ and melting temperature also.