Combined Influence of MgO and TEOS Sintering Additives on the Structure and Optical Properties of the Ceramic Yag:Yb, Er

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS Glass and Ceramics Pub Date : 2023-12-27 DOI:10.1007/s10717-023-00626-1

D. S. Vakalov, I. S. Chikulina, S. N. Skichuk, D. P. Bedrakov, F. F. Malyavin, L. V. Kozitov

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Abstract

The effect of sintering additives based on magnesium oxide MgO and silicon oxide (TEOS) at concentrations0.02 – 0.10 wt.% and 0.2 – 0.5 wt.%, respectively, on the microstructure and optical properties of ceramics with the composition Y_2.82Yb_0.15Er_0.03Al₅O₁₂, made from powders synthesized by chemical coprecipitation. The results demonstrated that the introduction of an MgO-based sintering additive into ceramic powder does not affect its phase composition, structural, or morphological characteristics. It was shown that for ceramics with the composition Y_2.82Yb_0.15Er_0.03Al₅O₁₂ the best optical transmittance value was achieved at vacuum sintering temperature 1800°C and sintering additive concentrations 0.06 wt.% MgO and 0.3 wt.% TEOS. The sintering mechanism of the ceramic Y_2.82Yb_0.15Er_0.03Al₅O₁₂ depends on the ratio of the sintering additives MgO and TEOS.

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氧化镁和 TEOS 烧结添加剂对 Yag:Yb, Er 陶瓷结构和光学特性的综合影响

基于氧化镁 MgO 和氧化硅（TEOS）的烧结添加剂（浓度分别为 0.02 - 0.10 wt.%和 0.2 - 0.5 wt.%）对化学共沉淀法合成的 Y2.82Yb0.15Er0.03Al5O12 陶瓷的微观结构和光学特性的影响。结果表明，在陶瓷粉末中引入氧化镁基烧结添加剂不会影响其相组成、结构和形态特征。结果表明，对于成分为 Y2.82Yb0.15Er0.03Al5O12 的陶瓷，在真空烧结温度为 1800°C、烧结添加剂浓度为 0.06 wt.% MgO 和 0.3 wt.% TEOS 时，可获得最佳的光学透射率值。Y2.82Yb0.15Er0.03Al5O12 陶瓷的烧结机理取决于烧结添加剂氧化镁和 TEOS 的比例。

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来源期刊

Glass and Ceramics 工程技术-材料科学：硅酸盐

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.