| Cr, Li, W等添加物对瓷介电容瓷料性能的影响 |
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| 引用本文： | 章少华,谢冰.Cr, Li, W等添加物对瓷介电容瓷料性能的影响[J].中山大学学报(自然科学版),2003,42(Z1):78-80. |
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| 作者姓名： | 章少华 谢冰 |
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| 作者单位： | 南昌大学化学与材料科学学院,江西,南昌,330047 |
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| 基金项目： | 南昌大学校科研和教改项目 |
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| 摘 要： | 研究了Cr2O3,Li2CO3,WO3对于0.90(Sr0.54Pb0.26Ca0.20)TiO3-0.1Bi2O3*3.5TiO2为系统的中高压瓷介电容瓷料的介电性能的影响,实验发现掺加Cr2O3对于该瓷料的ε-t曲线有压峰作用;而Li2CO3的掺加有提升ε-t峰作用,介电常数随着掺加量的增加而提高,损耗在45
℃以下随掺加量的增加而提高;WO3的添加也具有提峰作用,并且同时可以降低高温段ε的温度系数.
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| 关 键 词： | 瓷介电容器 掺杂 温度系数 |
Influence of Cr2O3, La2O3, Li2CO3, and WO3 on Dielectric Properties of Ceramic Capacitor Materials |
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| Abstract.Influence of Cr2O3, La2O3, Li2CO3, and WO3 on Dielectric Properties of Ceramic Capacitor Materials[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2003,42(Z1):78-80. |
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| Authors: | Abstract |
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| Abstract: | The influence of Cr2O3,Li2CO3,WO3 on dielectric behaviors of the system 0.90(Sr0.54Pb0.26Ca0.20)TiO3-0.1Bi2O3*3.5TiO2 was investigated.The results showed that ① the incorporation of Cr2O3 makes the permittivity peak broader;② the addition of Li2CO3 raises the permittivity peak and the dielectric loss below 45 ℃;③ the doping of WO3 makes the permittivity peak higher, in the meantime reduces the temperature coefficient of permittivity at higher temperature. |
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| Keywords: | ceramic capacitor doping temperature coefficient |
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