Glass has no fixed melting point

- Nov 26, 2020-

Because glass is a mixture, it is non-crystalline, so there is no fixed melting point. The conversion of glass from solid to liquid is carried out in a certain temperature range (ie, softening temperature range). It is different from crystalline materials and has no fixed melting point. The softening temperature range is Tg~T1, Tg is the transition temperature, T1 is the liquidus temperature, and the corresponding viscosities are 1013.4 dPa·s and 104~6dPa·s, respectively.