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    Item type:Publication,
    Effect of Soaking Time and Sb2O3 Concentration on Number of Bubble and Optical Properties of Borosilicate Glasses
    (2021-01-01)
    Singkiburin, N.
    ;
    Srisittipokakun, N.
    ;
    Sangsawat, Y.
    ;
    Boonpa, W.
    ;
    Kim, H. J.
    Borosilicate glasses were fabricated with antimony oxide (Sb<inf>2</inf>O<inf>3</inf>)-doped in the formula of SiO<inf>2</inf>-B<inf>2</inf>O<inf>3</inf>-Na<inf>2</inf>O-CaO-ZnO, by using the melt-quenching method at 1200 °C which various soaking time of 3, 4, 5, 6, and 7 h. The results show that the density, molar volume and refractive index of glasses increased with increasing of Sb<inf>2</inf>O<inf>3</inf> concentration. However, the density of glasses decreases with increasing soaking time. The transmittance spectra present the absorption around 1050 nm and 450 nm which corresponds to Fe<sup>2+</sup> ion and Fe<sup>3+</sup> ion, respectively. This absorption strength decreases with increasing Sb<inf>2</inf>O<inf>3</inf> concentration which shows the highest strength at 0.0 mol% of Sb<inf>2</inf>O<inf>3</inf> content. Moreover, the decrease in the number of bubbles in the glass is dependent on the increase of the Sb<inf>2</inf>O<inf>3</inf> concentration and soaking time.