Graded PZT ceramics for piezoelectric transformers

被引：12

作者：

Kozielski, L. ^{[1
]}

Lisinska-Czekaj, A. ^{[1
]}

Czekaj, D. ^{[1
]}

机构：

[1] Univ Silesia, Dept Mat Sci, PL-41200 Sosnowiec, Poland

来源：

PROGRESS IN SOLID STATE CHEMISTRY | 2007年 / 35卷 / 2-4期

关键词：

PZT; functionally graded material; piezoelectric transformer;

D O I：

10.1016/j.progsolidstchem.2007.01.030

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the present study two types of the synthesized Pb(Zr1-xTix)O-3 (PZT) powders differing in Zr/Ti ratio were used to prepare the spatially inhomogeneous (i.e., graded) structure. A position-dependent chemical composition was expected to cause the property gradient. Disk-shaped compacts were prepared in a way such that two different orientations of the radial gradients were formed. The solid state sintering under pressure was utilized to prepare ceramics. Simultaneous thermal analysis was used to study thermal behavior of the ceramic powders. Graded PZT ceramics were characterized using X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. It was also characterized in terms of its dielectric properties by both bridge technique and the impedance spectroscopy. On the basis of graded PZT ceramics the disk-shaped radial mode piezoelectric transformer was developed and fabricated. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：521 / 530

页数：10

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