| Preparation of BaMgAl10O17 ：Eu^2＋ and Its Phase Behavior in Microemulsion System |
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| 引用本文： | 张熙莹 庄卫东 崔向中 何华强 黄小卫. Preparation of BaMgAl10O17 ：Eu^2＋ and Its Phase Behavior in Microemulsion System[J]. 中国稀土学报(英文版), 2006, 24(6): 736-739. DOI: 10.1016/S1002-0721(07)60019-2 |
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| 作者姓名： | 张熙莹 庄卫东 崔向中 何华强 黄小卫 |
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| 作者单位： | National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Grirem Advanced Materials Co. Ltd. , Beijing 100088, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （50372086） and M0ST of China （2006CB601104） |
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| 摘 要： | BaMgAl10O17 ： Eu^2＋ （BAM） was prepared in the microemulsion system and its phase behavior was studied. There exists a small region in the reverse microemulsion system where the dispersed particles are of spherical form. In this way, BAM blue phosphor with good dispersion can be synthesized. The microemulsion phase diagrams of the pseudo-ternary system （Triton X-100/cosuffactant-oil-BAM brine） were first established intuitively by the dilution method. The microstructure of microemulsions was determined through eyeballing, conductance technique, and polar optical microscopy. Its phase behavior is affected by various factors, such as temperature （room temperature, 30, 40 ℃）, oil, surfactants, and cosurfactants in microemulsions. According to the phase diagrams, the microemulsion system of Triton X-100/1-hexanol-hexane-BAM brine was chosen to prepare the precursor. The BAM phosphor can be obtained via sintering the precursor at a comparatively low temperature. The phosphors were characterized by XRD and vacuum ultraviolet （VUV） spectra.
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| 关 键 词： | 微乳液体系 BAM 稀土 铕 制备 相图 |
| 文章编号： | 1002-0721（2006）06-0736-04 |
| 收稿时间： | 2006-06-20 |
| 修稿时间： | 2006-09-20 |
Preparation of BaMgAl10O17:Eu and Its Phase Behavior in Microemulsion System |
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| Zhang , Zhuang Weidong, Cui Xiangzhong, He Huaqiang,Huang Xiaowei. Preparation of BaMgAl10O17:Eu and Its Phase Behavior in Microemulsion System[J]. Journal of Rare Earths, 2006, 24(6): 736-739. DOI: 10.1016/S1002-0721(07)60019-2 |
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| Authors: | Zhang Zhuang Weidong Cui Xiangzhong He Huaqiang Huang Xiaowei |
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| Affiliation: | aNational Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Grirem Advanced Materials Co. Ltd., Beijing 100088, China |
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| Abstract: | BaMgAl10O17: Eu2+ (BAM) was prepared in the microemulsion system and its phase behavior was studied. There exists a small region in the reverse microemulsion system where the dispersed particles are of spherical form. In this way, BAM blue phosphor with good dispersion can be synthesized. The microemulsion phase diagrams of the pseudo-ternary system (Triton X-100/cosurfactant-oil-BAM brine) were first established intuitively by the dilution method. The microstructure of microemulsions was determined through eyeballing, conductance technique, and polar optical microscopy. Its phase behavior is affected by various factors, such as temperature (room temperature, 30, 40 °C), oil, surfactants, and cosurfactants in microemulsions. According to the phase diagrams, the microemulsion system of Triton X-100/1-hexanol-hex-ane-BAM brine was chosen to prepare the precursor. The BAM phosphor can be obtained via sintering the precursor at a comparatively low temperature. The phosphors were characterized by XRD and vacuum ultraviolet (VUV) spectra. |
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| Keywords: | microemulsion surfactant phase diagram BAM rare earths |
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