| Nanostructured Yb：GGG polycrystalline powders via gel combustion method |
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| 引用本文： | 黄德馨,张学建,刘景和,张丹.Nanostructured Yb：GGG polycrystalline powders via gel combustion method[J].中国稀土学报(英文版),2009,27(3):403-406. |
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| 作者姓名： | 黄德馨 张学建 刘景和 张丹 |
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| 作者单位： | HUANG Dexin,ZHANG Xuejian(Department of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China;Department of Materials Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun 130021, China);LIU Jinghe,ZHANG Dan(Department of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China)
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| 基金项目： | Foundation item： Project supported by the Foundation of Ordnance Science Institute （42001070403） |
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| 摘 要： |
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| 关 键 词： | 纳米粉体 纳米结构 GGG 燃烧法 凝胶 镱离子掺杂 透射电子显微镜 DTA分析 |
| 收稿时间： | 27 August 2008 |
Nanostructured Yb:GGG polycrystalline powders via gel combustion method |
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| HUANG Dexin,ZHANG Xuejian,LIU Jinghe,ZHANG Dan.Nanostructured Yb:GGG polycrystalline powders via gel combustion method[J].Journal of Rare Earths,2009,27(3):403-406. |
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| Authors: | HUANG Dexin ZHANG Xuejian LIU Jinghe ZHANG Dan |
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| Affiliation: | [1]Department of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China [2]Department of Materials Scienceand Engineering, Jilin Arvhitectural and Civil Engineering Institute, Changchun 130021, China |
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| Abstract: | Gadolinium gallium garnet (GGG) nanopowders doped with ytterbium ions (Yb:GGG) were synthesized with citric acid as a fuel via gel combustion method. The optimized conditions for preparing Yb3+:Gd3Ga5O12 nanopowders were discussed. The heat behavior, struc-ture and morphology of powders were analyzed with thermal analysis (TG-DTA), X-ray diffraction (XRD), infrared spectra (IR) and trans-mission electron microscope (TEM). TG-DTA analysis revealed that the weight loss of the precursor occured below 800 ℃ and its crystalli-zation temperature was 830.6 ℃. XRD and IR analysis showed that the precursor converted directly into pure GGG at a relatively lower tem-perature (900 ℃) without any other intermediate phase. The lattice constant was 1.2377 calculated by extrapolation method. TEM results in-dicated that the spherical powders showed good dispersity and had a relatively narrow size distribution with average particle size of approxi-mately 40-50 nm, which was favorable for good sinterability of Yb:GCG laser ceramic. |
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| Keywords: | Yb3 :Gd3Ga5O12 gel combustion method nanopowders polycrystalline rare earths |
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