| CCTO掺杂对BaTiO3-Nb2O5-Co3O4陶瓷系统介电性能的影响 |
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| 引用本文： | 罗旭,蒲永平,赵新.CCTO掺杂对BaTiO3-Nb2O5-Co3O4陶瓷系统介电性能的影响[J].西北轻工业学院学报,2012(3):41-43. |
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| 作者姓名： | 罗旭 蒲永平 赵新 |
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| 作者单位： | 陕西科技大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金(51072106,51102159);教育部新世纪优秀人才支持计划项目(NCET-11-1042);陕西科技大学学科带头人培养计划项目及研究生创新基金 |
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| 摘 要： | 以BaTiO3-Nb2O5-Co3O4(BTNC)系统陶瓷为研究对象,研究了掺杂CaCu3Ti4O12(CCTO)对该系统陶瓷介电性能的影响.结果表明,在20～85℃温度范围内,BT系统中CC-TO掺杂量为3.0%时,体系平均介电常数>2 600,温度稳定性△C/C≤4.7%;在20～125℃温度范围内,BTNC系统中CCTO掺杂量为2.0%时,体系的平均介电常数>2 700,温度稳定性△C/C≤10%;CCTO掺杂量为4.0%时,平均介电常数>2 200,温度稳定性△C/C≤4.7%.
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| 关 键 词： | 钛酸钡 温度稳定性 介电常数 陶瓷电容器 |
Effects of CCTO doping on the dielectric properties of BaTiO3-Nb2O5-Co3O4 ceramic system |
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| LUO Xu,PU Yong-ping,ZHAO Xin.Effects of CCTO doping on the dielectric properties of BaTiO3-Nb2O5-Co3O4 ceramic system[J].Journal of Northwest University of Light Industry,2012(3):41-43. |
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| Authors: | LUO Xu PU Yong-ping ZHAO Xin |
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| Affiliation: | (College of Material Science and Engineering,Shaanxi University of Science & Technology,Xi′an 710021,China) |
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| Abstract: | In this paper,the ceramic of BaTiO3-Nb2O5-Co3O4(BTNC) systems was studied as the main object,in order to research the effect of the system dielectric properties by adding CaCu3Ti4O12(CCTO).It was found that,in the range from 20 ℃ to 85 ℃,the dielectric constant of BT system,which was doped 3.0% CCTO,reached 2 600 or more,and the temperature stability was △C/C≤4.7%;in the range from 20 ℃ to 125 ℃,the dielectric constant of BTNC system,which was doped 2.0% CCTO,reached 2 700 or more,and the temperature stability was △C/C≤10%;which was doped 4.0% CCTO,reached 2 200 or more,and the temperature stability was △C/C≤5%. |
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| Keywords: | barium titanate temperature stability dielectric constant ceramic capacitors |
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