【摘要】 采用复合沉淀法制备了具有良好烧结活性的纳米级Y_1.34Gd_0．60Eu_0.06O₃粉体．经 850℃／2h煅烧后,得到晶粒尺寸为30-40nm,且基本无团聚的Y1．34Gd0．60Eu0．06O3发光粉体,粉体比表面积为23m2／g．该粉体经过适当的干压和等静压成型后,于1800℃以上温度烧结6h,可以获得Y1．34Gd0．60Eu0．06O3透明陶瓷．获得的透明陶瓷材料在波长250nm的紫外光激发下发射出较强的红光,发射主峰位于610nm,对应于掺杂Eu3+的5D0-7F2跃迁．更多还原

【Abstract】 Y_1.34Gd_0．60Eu_0.06O₃ nanopowders with high sinterability were prepared via a complex co-precipitation method. The nanopowder obtained has an average particle size of 30⁴0nm, weakly agglomerate after calcining at 850 ℃ for 2h. After dry-pressed and isostatic pressed at 200MPa, the green body can be sintered to transparency at 1800 ℃ for 6h. The as-sintered transparent ceramics show intense red luminescence at 610nm under 250nm UV excitation, corresponding to 5D0 - 7F2 transition of Eu3+ ion.更多还原