No fixed melting point of glass

- Jul 06, 2020-

No fixed melting point

Because glass is a mixture, amorphous, there is no fixed boiling point.The transition of glass from solid to liquid takes place within a certain temperature range (i.e., softening temperature range). Unlike crystalline materials, it has no fixed melting point.The softening temperature ranges from Tg to T1, where Tg is the transition temperature and T1 is the liquidus temperature. The corresponding viscosity is 1013.4 dPa· S and 104~6dPa·s, respectively.