中文摘要：

采用尿素共沉淀法合成Tm,Ho：Gd3Ga5O12（Tm,Ho：GGG）纳米粉体,利用TG/DTA,XRD,SEM及电子衍射分析技术对Tm,Ho：GGG粉体的物相结构、热稳定性、粒度及形貌进行了分析.结果表明：所合成粉体为GGG相,1200℃获得了粒径均匀、分散性和流动性好纳米粉体,大小约50 nm～150 nm之间,有利于制备性能优异的Tm,Ho：GGG陶瓷.

英文摘要：

Use urea co-precipitation method compound the gadolinium gallium garnet（Gd3Ga5O12,referred to as GGG） nano sized powder mixed with Tm,Ho,we analyze Yb： GGG powder phase structure,thermal stability,particle size and morphology by thermo gravimetric/ differential thermal analysis（TG/DTA）,infrared spectroscopy（IR）,X-ray diffraction（XRD）,transmission electron microscopy（SEM）,scanning electron microscopy（SEM）.The results showed that： the synthesis powder is GGG phase,we obtain the uniform particle size,dispersion and fluidity nano sized powders under 1 200 ℃,the size is between about 50-150 nm,it is good to prepare the high performance Tm,Ho： GGG ceramics.