Enhancement of breakdown electric field and DC bias of (In0.5Nb0.5)0.005(Ti1-xZrx)0.995O2 colossal permittivity ceramics
Enhancement of breakdown electric field and DC bias of (In0.5Nb0.5)0.005(Ti1-xZrx)0.995O2 colossal permittivity ceramics
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(In0.5Nb0.5)0.005(Ti1-xZrx)0.995O2大介电常数陶瓷的击穿电场和直流偏压增强
DOI：
10.1016/j.jallcom.2018.01.052
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发表时间：
2018-04-05
影响因子：
6.2
通讯作者：
Song, Yuechan
中科院分区：
文献类型：
--
作者：
Guo, Baochun;Liu, Peng;Song, Yuechan
采用固相反应法制备了In，Nb，Zr共掺杂的TiO 2（（In0.5Nb0.5）（0.005）（Ti 1-xZrO 2）（0.995）O2）（x = 0-0.80）陶瓷，研究了其结构、介电性能和直流偏压响应。的溶解度极限被认为是接近x = 0.10，和过量添加的Zr是存在的二次ZrTiO 4相的形式。在x = 0-0.10范围内，平均晶粒尺寸从20.2 μ m增加到39.5 μ m，然后在x = 0.20时减小到5.2 μ m。对于x = 0-0.20范围内的样品，在1 kHz下的介电常数超过10（4），然后对于x = 0.40降低至570。对于x = 0.20，陶瓷样品显示出接近10（4）的ε（r）和tan δ
In, Nb, and Zr co-doped TiO2 ((In0.5Nb0.5)(0.005)(Ti1-xZrx)(0.995)O-2) (x = 0-0.80) ceramics were prepared by a solid-state reaction method, and their structures, dielectric properties, and response to DC bias were studied. The solubility limit was found to be near x = 0.10, and the excess added Zr was present in the form of secondary ZrTiO4 phase. The mean grain size increased from 20.2 to 39.5 mu m in the x = 0-0.10 range and then decreased to 5.2 mu m for x = 0.20. Permittivity at 1 kHz exceeded 10(4) for the samples in the x = 0-0.20 range and then decreased to 570 for x = 0.40. For x = 0.20, the ceramic sample showed epsilon(r) approximate to 10(4) and tan delta