Low-temperature synthesis of glass-ceramics with YNbO$_{4}$ : Tb$^{3+}$ crystallites

The main aim of this work was to perform low-temperature synthesis of glass-ceramics with YNbO$_{4}$ : Tb$^{3+}$ crystalline inclusions and study the structural and luminescent properties of the samples synthesized. In the framework of this work, inclusions crystallized in the system B$_{2}$O$_{5}$–Na$_{2}$О–Y$_{2}$O$_{3}$–Nb$_{2}$O$_{5}$–Tb$_{4}$O$_{7}$ (Bura). It was shown that in this system, regardless of the precursors in the samples, YNbO$_{4}$ : Tb$^{3+}$ in an amount of more than 70% of the total crystalline component. The most promising system for the synthesis of activated glass-ceramics with YNbO$_4$ proved to be synthesized from oxide precursors; it crystallized more than 95% YNbO$_{4}$ : Tb$^{3+}$ of the total crystalline component. The luminescent properties of crystalline inclusions were studied using the local cathodoluminescence method. The composition and structure of glass ceramics were studied by methods X-ray spectral microanalysis and X-ray diffraction phase analysis.