Study of Physical and Optical Properties of Cobalt Oxide-Doped Glass Prepared by Microwave Melting Technique

Pattraporn Saengka; Nakarin  Singkiburin; Keerati  Kirdsiri; Nattapon  Srisittipokakun

doi:10.53848/ssstj.v12i1.1033

Authors

Pattraporn Saengka Nakhon Pathom Rajabhat University
Nakarin Singkiburin Nakhon Pathom Rajabhat University
Keerati Kirdsiri Nakhon Pathom Rajabhat University
Nattapon Srisittipokakun Nakhon Pathom Rajabhat University

DOI:

https://doi.org/10.53848/ssstj.v12i1.1033

Keywords:

Microwave melting technique, CoO, Glass, Physical and Optical properties

Abstract

This research investigates the physical and optical properties of cobalt oxide-doped glass prepared using the microwave melting technique. The glass composition was formulated according to the ratio (50-x)B₂O₃: 10SiO₂: 30ZnO : 10Na₂O : xCoO, where x represents the cobalt oxide concentration (0.00, 0.01, 0.05, 0.10, 0.15, and 0.20 mol%). Glass samples were prepared using the microwave melting technique, applying 1,000 watts of power for 20 minutes. The melted glass was then poured into a graphite mold and annealed at 500°C. The results showed that both density and refractive index increased with rising CoO concentration, while molar volume decreased. The absorption spectra of the glass, in the wavelength range of 250-1,100 nm, increased with higher CoO concentrations. Additionally, the CIE L*a*b* values indicated a blue color.

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https://publication.npru.ac.th/jspui/handle/123456789/1889