INFLUENCE OF MANUFACTURING PARAMETERS ON THE OPTICAL PROPERTIES OF LUMINESCENT GLAZES

This article focuses on the glass-ceramic composite structure of glazes with photoluminescent properties. In this study the luminescent glaze is based on phosphor: SrAl₂O₃:Eu3⁺, Dy³⁺ (called GS). The study investigated the effect of the phosphor concentration in the glaze within the range of 10-30 wt% and the effect of annealing time within the range of 0-60 minutes. Changes in phase composition were observed as a function of the process parameters (annealing time) and changes in the photoluminescent properties (excitation spectrum, emission spectrum, and quantum yield) to determine the optimal annealing time during glazing. The study found that with increasing glazing time, the luminescent properties deteriorated due to degradation of the crystalline structure.