Enhanced piezoelectric properties of (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 lead-free ceramics by optimizing calcination and sintering temperature

被引：309

作者：

Wang, Pan ^{[1
]}

Li, Yongxiang ^{[1
]}

Lu, Yiqing ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Device, Shanghai 200050, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2011年 / 31卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Calcination; Sintering; Grain boundaries; Piezoelectric properties; ELECTRICAL-PROPERTIES; FREE PIEZOCERAMICS; MICROSTRUCTURE;

D O I：

10.1016/j.jeurceramsoc.2011.04.023

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Lead-free (Ba0.85Ca0.15)(Ti0.9Zr0.1)O-3 (BCTZ) piezoelectric ceramics were prepared by conventional oxide-mixed method at various calcination and sintering temperatures. Both calcination and sintering temperatures have a significant effect on the density and grain size, which are closely related with piezoelectric and other properties of ceramics. The calcination temperature has a great influence on the grain boundary, which also plays an important role in piezoelectric properties. With increased calcination and sintering temperature, the ferroelectric and piezoelectric properties have enhanced significantly. The BCTZ ceramics calcined at 1300 degrees C and sintered at 1540 degrees C exhibit optimal electrical properties: d(33) = 650 pC/N, d(31)= 74 pC/N, k(p) =0.53, k(31)= 0.38, k(31) = 0.309, s(11)(E) = 14.0 x 10(-12) m(2)/N, epsilon(r) = 4500, P-r = 11.69 mu C/cm(2), which is a promising lead-free piezoelectric candidate. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2005 / 2012

页数：8

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