Yb^(3+):Y_2O_3超细粉体的低温燃烧法合成及发光性能  

Preparation and luminescent properties of Yb^(3+):Y_2O_3 ultrafine powders by low-temperature combustion synthesis

作　　者：卢歆[1,2] 田坚[2] 

机构地区：[1]长春大学理学院,吉林长春130022 [2]长春理工大学材料科学与工程学院,吉林长春130022

出　　处：《中国光学》2011年第6期667-671,共5页Chinese Optics

基　　金：吉林省科技厅青年基金资助项目(No.20060503)

摘　　要：以稀土硝酸盐和尿素(摩尔分数为1∶3)为原料,采用低温燃烧法在点火温度为600℃,热处理温度为1 100℃,热处理时间为1 h条件下制备了Yb3+∶Y2O3超细粉体。利用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)和荧光光谱仪(FS)对粉体进行了表征。研究了点火温度、燃料用量和热处理温度对粉体性能的影响。实验结果表明:所制备的Yb3+∶Y2O3超细粉体的粒径为15～30 nm,颗粒分散性较好,无明显团聚,且粉体的发光性能良好,发射峰位于976,1 030和1 075 nm,适合于制备Yb3+∶Y2O3透明陶瓷。Yb3＋∶ Y2O3 ultrafine powders were prepared by using the low-temperature combustion synthesis（LCS） with the solutions of mixed nitrates and urea in mol concentration ratio of 3∶ 1 and at a ignition temperature about 600 ℃.The Yb3＋∶ Y2O3 ultrafine powders were measured by using a X-ray Diffractometer（XRD）,a Scanning Electron Microscope（SEM） and a Fluorescence Spectrometer（FS）.The influences of ignition temperature,fuel content and calcination temperature on the characteristics of the powders were investigated.The experimental result shows that the grain diameter of as-prepared powders is about 15-30 nm,and the grain dispersion is good without obvious agglomeration.Moreover the fluorescence performace of the powders is well,and the emission peaks are located at 976,1 030 and 1 075 nm.As a result,the Yb3＋∶ Y2O3 ultrafine powders can be propitious to the preparation of Yb3＋∶ Y2O3 transparent ceramics.

关 键 词：Yb3+∶Y2O3 低温燃烧法 超细粉体 荧光光谱 

分 类 号：TQ174.758.23[化学工程—陶瓷工业] O482.31[化学工程—硅酸盐工业]