Authors : Sagar Vijay Kale

Volume/Issue : Volume 11 - 2026, Issue 8 - August

Google Scholar : https://tinyurl.com/5ff5deru

DOI : https://doi.org/10.38124/ijisrt/26aug1518

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Abstract : Using the experimentally obtained refractive index and the measured molar volume, the molar refraction (RM), specific refractivity of the isotropic dielectric (e), molecular dipole polarizability (a), and the number of molecular chains (N) were calculated using the Lorentz–Lorenz and related formalisms. Molar refraction and polarizability were found to increase with increasing ZnO content (9.109 to 17.188 (mol.cm)-1 and 3.612 to 6.816 ×10-23 cm3, respectively), while the number of molecular chains decreased slightly. These trends are interpreted in terms of the higher polarizability of the Zn2+ modifier ion relative to Na+, and and the corresponding network expansion and increase in non-bridging oxygen content with ZnO substitution.

Keywords : Sodium Phosphate Glass; ZnO; Refractive Index; Molar Refraction; Polarizability; Lorentz–Lorenz Equation.

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