High dielectric constant observed in (1-x)Ba(Zr0.07Ti0.93)O3-xBa(Fe0.5Nb0.5)O3 binary solid-solution

被引：10

作者：

Kruea-In, Chatchai ^{[1
]}

Eitssayeam, Sukum ^{[1
,2
]}

Pengpat, Kamonpan ^{[1
,2
]}

Rujijanagul, Gobwute ^{[1
,2
]}

机构：

[1] Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand

[2] Chiang Mai Univ, Fac Sci, Mat Sci Res Ctr, Chiang Mai 50200, Thailand

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 10期

关键词：

Ceramics; Dielectric properties; CERAMICS; BAFE0.5NB0.5O3; TUNABILITY; SR;

D O I：

10.1016/j.materresbull.2012.04.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Binary solid-solutions of the (1 - x)Ba(Zr0.07Ti0.93)O-3-xBa(Fe0.5Nb0.5)O-3 system, with 0.1 <= x <= 0.9,were fabricated via a solid-state processing technique. X-ray diffraction analysis revealed that all samples exhibited a single perovskite phase. The BaFe0.5Nb0.5O3 also promoted densification and grain growth of the system. Dielectric measurements showed that all samples displayed a relaxor like behavior. The x = 0.1 sample presented a dielectric-frequency and temperature with low loss tangent (<0.07 at 10 kHz). For x > 0.2 samples, the dielectric data showed a broad dielectric constant-temperature curve with a giant dielectric characteristic. In addition, a high dielectric constant > 50,000 (at 10 kHz and temperature > 150 degrees C) was observed for the x = 0.9 sample. (C) 2012 Published by Elsevier Ltd.

引用

页码：2859 / 2862

页数：4

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