Effect of Y3+ and Nb5+ co-doping on dielectric and piezoelectric properties of PZT ceramics

被引：0
|
作者：
Zak, A. K. [1 ]
Jalalian, A. [1 ]
Hosseini, S. M. [1 ]
Kompany, A. [1 ]
Narm, T. Shekofteh [1 ]
机构：
[1] Ferdowsi Univ Mashhad, Dept Phys, Mat & Electroceram Lab, Mashhad, Iran
来源：
MATERIALS SCIENCE-POLAND | 2010年 / 28卷 / 03期
关键词：
piezoelectric properties; PZT ceramics; dielectric properties; LEAD-ZIRCONATE-TITANATE; FERROELECTRIC THIN-FILMS; ELECTROMECHANICAL PROPERTIES;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of co-doping of Pb1-xYx[(Zr0.53Ti0.47)(1-x)Nb-x]O-3 bulk materials (0 <= x <= 0.03) with Y3+ ions and Nb5+ on their dielectric and piezoelectric properties o was investigated. Samples fabricated by conventional oxide mixing (OM) were sintered at 1250 degrees C for 2 h in a Pb-rich atmosphere. During the tetragonal-rhombohedral transition in the doped PZT ceramics a negligible effect was observed after additions of Y3+ and Nb5+ ions. The co-doping with both ions was noted to inhibit grain growth and promote densification and electrical properties. The optimal doping level was found to be at x = 0.015, for which the electric permittivity of 907, the piezoelectric constant of 323 pC/N, g(33) of 40 mV/N, Q(m) of 272 and the electromechanical coupling factor (k(p)) of 0.49 were obtained.
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页码：703 / 708
页数：6
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