Models for optical properties in the system Li2O–Na2O–MgO–CaO–TiO2–ZrO2–SiO2

Using experimental design, 15 high titania glasses in the system Li2O–Na2O–MgO–CaO–TiO2–ZrO2–SiO2 were prepared and their refractive indices, dispersions and densities determined. Polynomial models were derived to describe the relationships between properties and glass composition. The refractive index and dispersion models were linear, while the density model required second degree terms for an adequate fit to experiments.