溶胶-凝胶燃烧法合成Er^(3+):YAG纳米粉体(英文)  

SYNTHESIS OF Er^(3+):YAG NANOPOWDER BY SOL–GEL COMBUSTION METHOD

作　　者：吕灼菲[1] 李轶[1] 张学建[1] 王成伟[1] 曾繁明[1] 刘景和[1] 

机构地区：[1]长春理工大学材料科学与工程系,长春130022

出　　处：《硅酸盐学报》2008年第10期1454-1457,共4页Journal of The Chinese Ceramic Society

基　　金：吉林省科技发展计划项目(D2005505)。

摘　　要：以氧化铒、氧化钇、硝酸铝及柠檬酸作为起始原料,采用溶胶–凝胶燃烧法制备 50%Er3+(摩尔分数)掺杂的 Y3Al5O12(YAG)纳米粉体。通过热重–差热分析仪,X 射线衍射仪、红外光谱仪和透射电镜研究 Er3+:YAG 粉体的相变过程、结构和形貌。结果表明:烧结温度小于 900 ℃时,前驱体粉末直接转变为纯 YAG 晶相,不形成任何中间相。随着烧结温度的增加,晶粒尺寸增大。在 900 ℃烧结的粉体尺寸约为 70～150 nm,有利于制备性能优异的 Er3+:YAG 陶瓷。The sol-gel combustion method was used to synthesize 50% Er^3＋ （in mole） doped Y3A15012（YAG） nanopowder, using erbium oxide, yttria, aluminum nitrate and citric acid as starting materials. The phase transformation, structure and morphology of Er^3＋：YAG precursor and the calcined powder were studied by means of thermogravimetric-lifferential thermal analysis, X-ray powder diffraction, infi＇ared, and transmission election microscope methods. It was found that the precursor is converted directly into pure YAG at a relatively lower temperature （below 900 ℃） without any other intermediate phase. The crystalline size grew with the increase of the heat treatment temperature. The size of powder calcined at 900 ℃ was about 70-150nm, which is favorable for good sinterability of Er^3＋：YAG ceramics.

关 键 词：掺铒的钇铝石榴石 纳米粉末 溶胶—凝胶燃烧法 激光陶瓷 

分 类 号：TF123[冶金工程—粉末冶金]