摘要
采用传统固相反应法制备了(1-x)Bi(Zn0.5Zr0.5)O3-xPbTiO3(BZZPTx)陶瓷,并利用XRD、SEM,介温等方法分析表征样品。XRD测试结果显示,当x>0.67时,可获得单一四方相钙钛矿结构的BZZPTx陶瓷,通过XRD精修数据计算出BZZPTx体系陶瓷具有较大的四方畸变度(c/a>1.1);介温测试表明BZZPTx体系的居里温度均超过500℃,最高的居里温度组分为BZZPT0.67,Tc～668℃;实验表明该压电陶瓷体系的弱压电活性跟较大的四方畸变有关系。
（ 1 - x ） Bi （ Zn0. 5 Zr0. 5 ） O3-xPbTiO3 （ BZZPTx ） ceramics were prepared by conventional solid reaction. BZZPTx ceramics were characterized by XRD, SEM and dielectric-temperature characterization. The results show that X-ray diffraction （XRD） of BZZPTx indicates the perovskite phase with the single tetragonal peroviskite sructure in the range of x 〉 0.67. Furthermore, the BZZPTx system obtained large lattice distortion （ c/a 〉 1.1 ）, combining with lower piezoelectricity. It was also found that highest value of the Curie temperature （ Tc = 668 ℃ ） at x = 0.67 and the Curie temperature shifts lower with the increasing of PbTiO3 content.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第3期472-475,共4页
Bulletin of the Chinese Ceramic Society
基金
贵州省黔财教[2011(232)]
贵州省科技厅[黔科合2011(2031)]
贵州省人事厅[TZJF2010041]
关键词
钙钛矿
相变温度
压电性能
peroviskite
phase transition temperature
piezoelectric properties
