(Na, K)NbO3-Based Ceramics for Self-Powered Energy Harvesting Applications

被引：4
|
作者：
Kim, Jinhwan [1 ]
Koh, Jung-Hyuk [1 ]
机构：
[1] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2015年 / 15卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
Energy Harvesting; 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3; Sintering Temperature; FREE PIEZOELECTRIC CERAMICS; CALCINATION TEMPERATURE; PZT;
D O I：
10.1166/jnn.2015.10268
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Self-powered energy harvesting technologies have been intensively investigated by employing Pb-free piezoelectric materials. One such Pb-free piezoelectric material, the ceramic 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3, was prepared by employing the conventional mixed oxide method. 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics were prepared and the effect of sintering temperature on the microstructure, piezoelectric and ferroelectric properties were systematically investigated for energy harvesting applications. The crystal structure of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 Pb-free piezoelectric ceramics, sintered at temperatures between 1080 degrees C and 1160 degrees C, was examined by X-ray diffraction analysis. The dielectric properties of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics were measured from 1 kHz to 1 MHz for the various sintering temperatures. We expect that optimization of sintering parameters can improve the piezoelectric and ferroelectric properties of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics for energy harvesting.
引用
收藏
页码：2360 / 2363
页数：4
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