| Sb_2O_3掺杂量对BaBiO_3基陶瓷电性能的影响 |
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| 引用本文： | 石雨,刘心宇,马家峰.Sb_2O_3掺杂量对BaBiO_3基陶瓷电性能的影响[J].电子元件与材料,2009,28(10). |
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| 作者姓名： | 石雨 刘心宇 马家峰 |
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| 作者单位： | 1. 桂林电子科技大学,信息材料科学与工程系,广西,桂林,541004
2. 桂林电子科技大学,信息材料科学与工程系,广西,桂林,541004;中南大学,材料科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 广西自然科学基金资助项目，桂林电子科技大学基金资助项目 |
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| 摘 要： | 为改善BaBiO3基陶瓷的NTC特性,选择Sb2O3为掺杂剂,以固相法合成了BaBiO3基陶瓷。研究了Sb2O3掺杂量对该陶瓷的物相、显微结构及电性能的影响。结果表明:Sb2O3掺杂BaBiO3基陶瓷的B25/85值和室温电阻率ρ25均随着n(Sb2O3)的增加呈现先减小后增大的趋势;当n(BaBiO3):n(Sb2O3)=1000:3时,获得了具有较好NTC特性的样品,其室温电阻率ρ25为416Ω.cm,B25/85值为2378K。
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| 关 键 词： | BaBiO3 NTC特性 Sb2O3掺杂量 电性能 |
Effect of Sb2O3-doped amount on the electrical properties of BaBiO3 based ceramics |
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| SHI Yu,LIU Xinyu,MA Jiafeng.Effect of Sb2O3-doped amount on the electrical properties of BaBiO3 based ceramics[J].Electronic Components & Materials,2009,28(10). |
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| Authors: | SHI Yu LIU Xinyu MA Jiafeng |
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| Abstract: | The Sb2O3-doped BaBiO3 based ceramics with NTC characteristics were prepared by conventional solid-state reaction method. The effects of Sb2O3-doped amount on the phase composition,microstructure and electrical properties of the ceramics were investigated by XRD,SEM and ρ-t characteristic tester. The results show that with increase of the Sb2O3-doped amount,the ρ25 and B25/85 value of the ceramics first decrease,and then increase again. When n(BaBiO3) :n(Sb2O3)=1 000 :3,the ceramic sample with better NTC characteristics is obtained and its ρ25 is 416 Ω.cm and B25/85 value is 2 378 K. |
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| Keywords: | BaBiO3 |
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