| 均匀沉淀法制备Ba1-xSrxTiO3介电材料 |
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| 引用本文： | 马建华.均匀沉淀法制备Ba1-xSrxTiO3介电材料[J].沧州师专学报,2005,21(2):87-88. |
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| 作者姓名： | 马建华 |
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| 作者单位： | 承德石油高等专科学校,化工系,河北,承德,067000 |
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| 摘 要： | 利用四氯化钛、氢氧化钡、氢氧化锶及氨水为原料,采用均匀沉淀法制备了Ba1-xSrxTiO3超细粉体.通过XRD物相分析,产品为立方晶系的完全固溶体,结果符合Vegard定律.TEM形貌观察,粒子为均匀球形,平均粒径小于100nm.用所合成的粉末压片,1200℃烧结即可得致密烧结体,介电常数6700,介电损失较纯钛酸钡有所降低.
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| 关 键 词： | 钛酸锶钡 介电材料 制备技术 |
| 文章编号： | 1008-4762(2005)02-0087-02 |
| 修稿时间： | 2005年1月19日 |
Synthesis, Structure and Properties of Ba1-xSrxTiO3 Nano-powders by Reactive Precipitation |
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| MA Jian-hua.Synthesis, Structure and Properties of Ba1-xSrxTiO3 Nano-powders by Reactive Precipitation[J].Journal of Cangzhou Teachers‘College,2005,21(2):87-88. |
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| Authors: | MA Jian-hua |
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| Abstract: | Nano-powders of Ba1-xSrxTiO3 consisting of solid solutions with an average particle size less than 100nm were synthesized by reactive precipitation process using a stoichiometrical mixture of TiCl4, Ba(OH)2, Sr(OH)2 as the reactants .The powder of TEM showed that the powders of Ba1-xSrxTiO3 were spherical and after doping by Sr2+, the particle size of solid decreases. XRD investigation confirmed that the powders of Ba1-xSrxTiO3 agrees with the Vegard law. Dielectric property analysis showed the dielectric constant at the temperature will increase at the beginning and then decrease. The dielectric constant of Ba1-xSrxTiO3 reached 6700 while some strontium was doped. |
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| Keywords: | barium strontium titanate dielectric materials production technology |
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