New Bi(Mg0.75W0.25)O3-PbTiO3 ferroelectric ceramics

被引：24

作者：

Snel, MD

Groen, WA

de With, G

机构：

[1] Eindhoven Univ Technol, Lab Mat & Interface Chem, NL-5600 MB Eindhoven, Netherlands

[2] Morgan Electro Ceram Netherlands, Dept Res & Dev, NL-5651 CA Eindhoven, Netherlands

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 1-2期

关键词：

Bi(Mg; W)O-3; PbTiO3; ferroelectric properties; piezoelectric properties; Curie temperature;

D O I：

10.1016/j.jeurceramsoc.2004.10.022

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：

An investigation was made into the Bi(Mg0.75W0.25)O-3-PbTiO3 (BMW-PT) system. The aim was to find the optimum composition with respect to piezoelectric and dielectric properties and link this to the presence of a morphotropic phase boundary (MPB). The optimum composition was found to be 62 mol% PT. The maximum values of the piezoelectric constant d(33) = 150 pm/V and the maximum relative dielectric constant epsilon(33)/epsilon(0) = 1400. The dielectric loss is high with tan 6 typically similar to 5%. Results from capacity versus the temperature measurements indicate a Curie temperature of 220 degrees C, which is significantly lower than the predicted value. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：89 / 93

页数：5

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