Yb^3＋,Ho^3＋共掺氧化钇透明陶瓷的制备及其性能

Synthesis and Optical Properties of Yb^(3+),Ho^(3+) Co-Doped Yttria Transparent Ceramics

研究了共沉淀法制备Yb/Ho∶Y2O3纳米粉末及其透明陶瓷的烧结工艺,采用Y(NO3)3、Yb(NO3)3和Ho(NO3)3的混合溶液为母盐溶液,以氨水为沉淀剂,在不同pH值下,用共沉淀法制备得到了碱式硝酸盐前驱体沉淀。1100℃煅烧2h得到Yb/Ho∶Y2O3纳米粉末。采用0.5wt%的TEOS(正硅酸四乙酯)为添加剂,1700～1850℃真空烧结15～25h后,得到了Yb/Ho∶Y2O3透明陶瓷。

A mixed solution of yttrium nitrate, ytterbium nitrate and holmium nitrate solution were used as a mother solution, and aqueous ammonia was used as a precipitant to synthesize Yb/Ho∶Y2O3 nanopowders by co-precipitation. Nitrate precursors were obtained via a co-precipitation method under different pH values. Yb/Ho∶Y2O3 nanopowders were synthesized by sintering at 1 100 ℃ for 2 h. With the addition 0.5wt%TEOS as a sintering aid, transparent Yb/ Ho∶Y2O3 ceramics were fabricated by vacuum sintering at 1 700～1 850 ℃ for 15～25 h.