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Preparation and Characterization of Y3Sc2Ga3O12 Nano-Polycrystalline Powders by Co-Precipitation Method

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【作者】 苏静； 张庆礼； 邵淑芳； 谷长江； 万松明； 殷绍唐；

【Author】 Su Jing 1,2,Zhang Qingli1,Shao Shufang 1,Gu Changjiang 1,Wan Songming 1,Yin Shaotang 1(1.Crystal Materials Laboratory of Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;2.College of Math & Qhysics,Nanjing University of Information Science & Technology,Nanjing 210044,China)

【机构】 Crystal Materials Laboratory of Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences； Crystal Materials Laboratory of Anhui Institute of Optics and Fine Mechanics； Chinese Academy of Sciences； Hefei 230031； China； College of Math & Qhysics； Nanjing University of Information Science & Technology； Nanjing 210044；

【摘要】 In order to grow high-quality gallium garnet crystals,polycrystalline materials were used as starting materials.YSGG precursor was synthesized by co-precipitation method using aqueous ammonia as a precipitator,and the precursor was then sintered at different temperatures.The results showed that the feasible pH range was 8.3～9.84 in the process of co-precipitation reaction.The YSGG precursor and the powders sintered at different temperatures were characterized by IR,XRD and TEM methods.It was found that the precursor transformed to pure YSGG polycrystalline phase at 800 ℃.YSGG nano-polycrystalline powders sintered at 800～1000 ℃ were well dispersed and the sizes of the YSGG grains were about 40～100 nm.

【Abstract】 In order to grow high-quality gallium garnet crystals,polycrystalline materials were used as starting materials.YSGG precursor was synthesized by co-precipitation method using aqueous ammonia as a precipitator,and the precursor was then sintered at different temperatures.The results showed that the feasible pH range was 8.3～9.84 in the process of co-precipitation reaction.The YSGG precursor and the powders sintered at different temperatures were characterized by IR,XRD and TEM methods.It was found that the precursor transformed to pure YSGG polycrystalline phase at 800 ℃.YSGG nano-polycrystalline powders sintered at 800～1000 ℃ were well dispersed and the sizes of the YSGG grains were about 40～100 nm.

【关键词】 co-precipitation method； YSGG； nano-polycrystalline powder； rare earths；
【Key words】 co-precipitation method； YSGG； nano-polycrystalline powder； rare earths；
【基金】 Project supported by the National Natural Science Foundation of China(50472104;60478025)
  • 【文献出处】 Journal of Rare Earths ,稀土学报(英文版) , 编辑部邮箱 ,2007年03期
  • 【分类号】O614.322
  • 【被引频次】2
  • 【下载频次】45
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