| BaTiO3及掺杂镧BaTiO3基超细粉体的制备及表征 |
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| 引用本文： | 文湘中.BaTiO3及掺杂镧BaTiO3基超细粉体的制备及表征[J].重庆职业技术学院学报,2006,15(2):129-133. |
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| 作者姓名： | 文湘中 |
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| 作者单位： | 湖南省益阳市电子工业学校,湖南,益阳,413000 |
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| 摘 要： | 以钛酸丁酯、醋酸钡和冰醋酸等为原料,采用溶胶——凝胶法工艺经水解、聚合合成溶胶,之后转变为凝胶,再经充分干燥、煅烧制成BaTiO3及掺杂镧BaTiO3粉体。研究了样品制备过程中影响溶胶——凝胶状态的因素,并用X射线衍射仪对粉体进行测试。实验结果表明:溶胶的初始pH值及温度影响溶胶、凝胶的状态及胶凝化时间,煅烧温度等影响BaTiO3粉体的合成,掺杂镧影响粉体晶粒尺寸的大小。
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| 关 键 词： | 溶胶——凝胶法 BaTiO_3 掺杂镧 超细粉体 |
| 文章编号： | 1672-0067（2006）02-0129-05 |
| 收稿时间： | 2006-02-08 |
| 修稿时间： | 2006年2月8日 |
Preparation and Characterization of BaTiO3-based Ultra-fine Powders Doped and Undoped with Lanthanium |
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| WEN Xiang-zhong.Preparation and Characterization of BaTiO3-based Ultra-fine Powders Doped and Undoped with Lanthanium[J].Journal of Chongqing Vocational& Technical Institute,2006,15(2):129-133. |
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| Authors: | WEN Xiang-zhong |
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| Abstract: | In this paper,the ultra-fine barium titanates doped and undoped with lanthanium are prepared by sol-gel method using(C4H9O)4Ti and Ba(CH3COOH)2 as raw materials.The structure and composition of the ultra-fine powders are characterized by XRD.Temperature and the value of PH are factors that affect sol-gel process and the state of gelatin.The particle sizes are affected by the import of Lanthanium. |
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| Keywords: | Sol-gel BaTiO3 doped with Lanthanium ultra-fine barium titanates |
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