CAJ | 학술논문

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。
이희토초산염화뇨소（마이분수위1∶3）위원료,채용저온연소법재점화온도위600℃,열처리온도위1 100℃,열처리시간위1 h조건하제비료Yb3＋∶Y2O3초세분체。이용X사선분말연사의（XRD）、소묘전자현미경（SEM）화형광광보의（FS）대분체진행료표정。연구료점화온도、연료용량화열처리온도대분체성능적영향。실험결과표명：소제비적Yb3＋∶Y2O3초세분체적립경위15～30 nm,과립분산성교호,무명현단취,차분체적발광성능량호,발사봉위우976,1 030화1 075 nm,괄합우제비Yb3＋∶Y2O3투명도자。
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.