Effect of Na0.5Bi0.5TiO3 on dielectric properties of BaTiO3 based ceramics
Effect of Na0.5Bi0.5TiO3 on dielectric properties of BaTiO3 based ceramics
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DOI：
10.1016/j.ceramint.2011.04.045
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发表时间：
2012
影响因子：
5.2
通讯作者：
Y. Sun;Hanxing Liu;H. Hao;Shujun Zhang;Liling Guo;Zhiyong Yu
中科院分区：
文献类型：
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作者：
Y. Sun;Hanxing Liu;H. Hao;Shujun Zhang;Liling Guo;Zhiyong Yu
本工作采用Na_（0.5）Bi_（0.5）TiO_3（NBT）掺杂的方法来改善Nb，Co掺杂BaTiO_3（BT）的高温介电性能。选择不同的x（x=0、0.02、0.04、0.06、0.08、0.1、0.2、0.3、0.4）以优化（1-x）BT-xNBT固溶体中BT与NBT的比例。原始X7 R材料的介电常数在室温下约为4900，在添加NBT（x=0.2）的情况下降低至2500。重要的是，温度稳定性得到改善，介电常数变化小于±15%，高达160°C。
In this work, Na0.5Bi0.5TiO3(NBT) was used to improve the high temperature dielectric properties of Nb, Co-doped BaTiO3(BT). Different x was selected (x=0, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.3, 0.4) to optimize the ratio of BT to NBT in (1−x) BT–xNBT solid solution. The dielectric constant of the original X7R material is about 4900 at room temperature, decreasing to 2500 with NBT addition (x=0.2). Of important is that the temperature stability was improved with dielectric constant variation being less than ±15% up to 160°C.