Low-Temperature Synthesis of Glass-Ceramics with YNbO4:Eu3+ Crystallites

摘要

The main aim of this work was to perform low-temperature synthesis of glass-ceramics with YNbO4:Eu3+ crystallites and study the structural and luminescent properties of the samples synthesized. The inclusions crystallized in the iO(2)-Na2O-K2O-Y2O3-Nb2O5-Eu2O3 (SiNaK) and B2O5-Na2O-Y2O3-Nb2O5-Eu2O3 (BNa) systems under the conditions of low-temperature synthesis were studied for the first time. It was shown that YNbO4:Eu3+ was crystallized in both systems under study. In the SiNaK system, SiO2 (quartz, cristobalite, and tridymite) was also crystallized under the chosen conditions. The BNa system was found to be most promising for the synthesis of doped glass-ceramics with YNbO4 because this system allows formation of only the desired crystallites. The luminescent properties of crystalline inclusions were studied by local cathodoluminescence. The glass-ceramics composition and structure were studied by X-ray spectral microanalysis and X-ray diffraction analysis.