Dielectric relaxor properties of K0.5Bi0.5TiO3 ferroelectrics prepared by sol-gel method

被引:100
作者
Li, ZF [1 ]
Wang, CL [1 ]
Zhong, WL [1 ]
Li, JC [1 ]
Zhao, ML [1 ]
机构
[1] China Inst Metrol, Dept Appl Phys, Hangzhou 310034, Peoples R China
关键词
D O I
10.1063/1.1592290
中图分类号
O59 [应用物理学];
学科分类号
摘要
Lead-free potassium-bismuth titanate, K0.5Bi0.5TiO3 (KBT), ferroelectric ceramics were fabricated from the natural sintering of powders prepared by the thermal decomposition of adequate precursor solutions. Their crystal structure was determined by x-ray diffraction, and the temperature dependence of dielectric constants were measured. The results show that KBT may be a kind of order-disorder relaxor ferroelectric with a first-order phase transition below the temperature of dielectric constant maximum. (C) 2003 American Institute of Physics.
引用
收藏
页码:2548 / 2552
页数:5
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