8-21

Fig.8-21 Liquidus surface projection for the SiO2-B2O3–Na2O ternary system

The glass phase diagram can be constructed using our established thermodynamic database. This figure shows the SiO2-B2O3–Na2O ternary system in air with an oxygen concentration of 20.95 %, which is called the liquidus surface projection. The relation between the glass composition and the liquidus point can easily be estimated using this figure.

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