Y₂O₃:Yb³⁺ 5 at% ceramics have been synthesized by the reactive sintering method using different commercial yttria powders (Alfa-Micro, Alfa-Nano, and ITO-V) as raw materials. It has been shown that all Y₂O₃ starting powders consist from agglomerates up to 5–7 µm in size which are formed from 25–60 nm primary particles. High-energy ball milling allows to significantly decreasing the median particle size D₅₀ below 500 nm regardless of the commercial powders used. Sintering experiments indicate that powder mixtures fabricated from Alfa-Nano yttria powders have the highest sintering activity, while (Y_0.86La_0.09Yb_0.05)₂O₃ ceramics sintered at 1750 °C for 10 h are characterized by the highest transmittance of about 45%. Y₂O₃:Yb³⁺ ceramics have been obtained by the reactive sintering at 1750–1825°C using Alfa-Nano Y₂O₃ powders and La₂O₃+ZrO₂ as a complex sintering aid. The effects of the sintering temperature on densification processes, microstructure, and optical properties of Y₂O₃:Yb³⁺ 5 at% ceramics have been studied. It has been shown that Zr⁴⁺ ions decrease the grain growth of Y₂O₃:Yb³⁺ ceramics for sintering temperatures 1750–1775 °C. Further increasing the sintering temperature was accompanied by a sharp increase of the average grain size of ceramics referred to changes of structure and chemical composition of grain boundaries, as well as their mobility. It has been determined that the optimal sintering temperature to produce high-dense yttria ceramics with transmittance of 79%–83% and average grain size of 8 µm is 1800 °C. Finally, laser emission at ∼1030.7 nm with a slope efficiency of 10% was obtained with the most transparent Y₂O₃:Yb³⁺ 5 at% ceramics sintered.

Y ₂ O ₃：Yb ³⁺ 5 at％陶瓷已通过反应烧结法以不同的商业氧化钇粉末（Alfa-Micro，Alfa-Nano和ITO-V）作为原料合成。已经显示，所有Y ₂ O ₃起始粉末均由尺寸最大为5-7 µm的附聚物组成，这些附聚物是由25-60 nm的初级粒子形成的。高能球磨可以将中值粒径D ₅₀显着减小到500 nm以下，而与所使用的市售粉末无关。烧结实验表明，由Alfa-Nano氧化钇粉末制成的粉末混合物具有最高的烧结活性，而（Y _0.86 La _0.09 Yb_0.05）₂ O ₃陶瓷在1750°C下烧结10 h的特点是最高透射率约为45％。Y ₂ O ₃：Yb ³⁺陶瓷是通过在1750–1825°C下使用Alfa-Nano Y ₂ O ₃粉末和La ₂ O ₃ + ZrO ₂作为复合烧结助剂进行反应烧结而获得的。研究了烧结温度对Y ₂ O ₃：Yb ^{3 +} 5 at％陶瓷的致密化过程，微观结构和光学性能的影响。已经表明Zr ^{4 +}离子在烧结温度1750–1775°C时会降低Y ₂ O ₃：Yb ³⁺陶瓷的晶粒长大。烧结温度的进一步提高伴随着陶瓷平均晶粒尺寸的急剧增加，这涉及晶界的结构和化学成分及其迁移率的变化。已经确定，生产透射率为79％–83％，平均晶粒度为8 µm的高密度氧化钇陶瓷的最佳烧结温度为1800°C。最后，在烧结最透明的Y ₂ O ₃：Yb ³⁺ 5 at％陶瓷的情况下，获得了〜1030.7 nm的激光发射，其倾斜效率为10％。