| 沉淀法制备Nd~(3+)掺杂改性的钛酸钡 |
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| 引用本文： | 柴艮风,施哲,陈玉林,张波. 沉淀法制备Nd~(3+)掺杂改性的钛酸钡[J]. 云南化工, 2006, 33(2): 24-28 |
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| 作者姓名： | 柴艮风 施哲 陈玉林 张波 |
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| 作者单位： | 昆明理工大学,材料与冶金学院,云南,昆明,650093 |
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| 摘 要： | 用共沉淀法合成了BaTiO3,研究了Ba1-xNdxTiO3系Nd3+施主一次掺杂在x=0.03~0.065之间时,BaTiO3基陶瓷电容器的本征电性能。结果表明,在此含量范围掺杂的情况下,陶瓷呈绝缘性,Nd3+含量在0.03~0.055左右时随着Nd3+含量的增加,陶瓷的ε增加,Tc呈下降趋势,tgδ值下降。Zr4+的加入也可使材料的ε增加,Tc下降。Mn2+的加入对材料的本征电性能影响不大。Ba1-3x/2NdxTiO3配比比Ba1-xNdxTiO3配比的材料的温度特性要好。
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| 关 键 词： | 共沉淀法 Nd3+施主掺杂 空位补偿 晶界 BaTiO3 |
| 文章编号： | 1004-275X（2006）02-0024-05 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-01-11 |
Synthesis of Nd3 + Doped BaTiO3 by Precipitation |
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| CHAI Gen-feng,SHI Zhe,CHEN Yu-lin,ZHANG Bo. Synthesis of Nd3 + Doped BaTiO3 by Precipitation[J]. Yunnan Chemical Technology, 2006, 33(2): 24-28 |
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| Authors: | CHAI Gen-feng SHI Zhe CHEN Yu-lin ZHANG Bo |
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| Affiliation: | School of Materials and Metallurgy, Kunming University of Science and Technology, Kunming 650093, China |
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| Abstract: | Nd~(3+) doped BaTiO_3 was synthesized by precipitation,and the electrical properties of BaTiO_3 ceramic of Ba_(1-x)Nd_xTiO_3 with different concentration(x from 0.03 to 0.065) were investigated.Experimental results showed that BaTiO_3 ceramic acted as insulator when Nd~(3+) was in the range of 3.0~ 6.5 mol%.In the range of 0.03~ 0.055,the(value of BaTiO_3 ceramic was increased as concentration enhanced,but the Tc and tg δ were decreased.The(value also decreased when added with Zr~(4+),whereas there was no difference when added with Mn~(2+). |
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| Keywords: | BaTiO3 |
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