Abstract

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 ЅіО₂–Na₂О–K₂O–Y₂O₃–Nb₂O₅–Eu₂O₃ (SiNaK) and B₂O₅–Na₂О–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.

中文翻译：

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低温合成YNbO 4：Eu 3+微晶玻璃陶瓷

摘要

这项工作的主要目的是用YNbO ₄：Eu ³⁺微晶进行玻璃陶瓷的低温合成，并研究合成样品的结构和发光特性。在ЅіО结晶内含物₂ -Na ₂ О-K ₂ ö-Y ₂ ö ₃ -Nb ₂ ø ₅ -Eu ₂ ö ₃（SiNaK）和B ₂ ö ₅ -Na ₂ О-Y ₂ ö ₃ -Nb ₂ O ₅ –Eu ₂ O ₃首次研究了低温合成条件下的（BNa）体系。结果表明，YNbO ₄：Eu ³⁺在两个研究体系中均发生了结晶。在SiNaK系统中，SiO ₂（石英，方石英和鳞石英）也在选定的条件下结晶。发现BNa体系最有可能用于合成具有YNbO ₄的掺杂玻璃陶瓷，因为该体系仅允许形成所需的微晶。通过局部阴极发光研究了晶体夹杂物的发光性质。通过X射线光谱显微分析和X射线衍射分析研究了玻璃陶瓷的组成和结构。