The Effect of Sintering Temperature on Lead-Free Bi0.5(Na0.78K0.22)0.5TiO3-(Na0.5K0.5)NbO3 Ceramics

被引：6
|
作者：
Hussain, A. [3 ]
Ahn, C. W. [2 ]
Ullah, A. [1 ]
Lee, J. S. [3 ]
Kim, I. W. [1 ]
机构：
[1] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea
[2] KETI, Convers Component R&D Div, Songnam 468816, South Korea
[3] Univ Ulsan, Sch Mat Sci & Eng, Ulsan 680749, South Korea
来源：
FERROELECTRICS | 2010年 / 404卷
关键词：
Lead-free; BNKT-NKN ceramics; piezoelectrics; Strain; PIEZOELECTRIC PROPERTIES; MICROSTRUCTURE;
D O I：
10.1080/00150193.2010.482488
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lead-free piezoelectric Bi-0.5(Na0.78K0.22)(0.5)TiO3-(Na0.5K0.5)NbO3 ceramics have been synthesized by a conventional solid-state reaction methods at different sintering temperatures (1100-1200 degrees C). The effect of sintering temperature on the crystal structure, density and electrical properties was investigated. The Bi-0.5(Na0.78K0.22)(0.5)TiO3-(Na0.5K0.5)NbO3 ceramics sintered at an optimum temperature of 1150 degrees C exhibited high density and electrical properties. High field-induced strain (0.22%) and high dynamic piezoelectric coefficient (S-max/E-max = d(33)* = 440 pm/V) were obtained for samples sintered at 1150 degrees C. These results are believed to be due to the high density and lower conductivities at this temperature.
引用
收藏
页码：157 / 161
页数：5
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