柠檬酸凝胶燃烧法制备Nd,Yb∶YGG激光陶瓷粉体及表征  

Preparation and Properties of Nd,Yb∶ YGG Laser Ceramic Powder by Citric Acid Sol-Gel Combustion Method

作　　者：潘柳[1] 孙晶[1] 宋欢欢 姜黎黎[1] 许志勇 

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]长春市农产品质量安全与检测中心,长春130002

出　　处：《硅酸盐通报》2014年第12期3192-3195,3199,共5页Bulletin of the Chinese Ceramic Society

摘　　要：以Nd2O3、Yb2O3、Y2O3、Ga2O3和柠檬酸为原料,采用凝胶燃烧法,制备出Nd,Yb∶YGG激光陶瓷粉体。对粉体进行XRD测试,结果表明在本实验条件下,粉体的较佳煅烧温度为800℃。扫描电镜观察发现,粉体晶粒为类球形,平均晶粒径约为50 nm,晶粒间存在一定烧结现象。荧光光谱测试结果表明Nd,Yb∶YGG激光陶瓷粉体最强发射峰位于1028 nm,归属于Yb3+的2F5/2→2F7/2能级跃迁,并且当Nd3+和Yb3+的摩尔比为1∶1时Yb3+的荧光发射强度最强。The Nd,Yb∶ YGG laser ceramic precursor powders was prepared by sol-gel combustion method.Nd2O3、Yb2O3、Y2O3、Ga2O3and citric acid were used as raw materials. XRD analysis showed that the preferred calcined temperature of the powder was 800 ℃. SEM analysis showed that the morphology of the powders was prolate spherical and the average radius is 50 nm,There is a certain grain sintering phenomenon. The fluorescence spectrum revealed that the most strong emission of Nd,Yb∶ YGG powders was 1028 nm,which was attributed to ^2F5 /2→^2F7 /2 of Yb^3＋. The fluorescence emission of Nd,Yb∶ YGG powders was the strongest when the mole rate between Nd^3＋ and Yb^3＋ was 1∶ 1.

关 键 词：凝胶燃烧法 Nd Yb∶YGG 陶瓷粉体 

分 类 号：TQ174[化学工程—陶瓷工业]