Predicting the position of the morphotropic phase boundary in high temperature PbTiO3-Bi(B'B')O3 based dielectric ceramics

被引：171

作者：

Suchomel, MR ^{[1
]}

Davies, PK ^{[1
]}

机构：

[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 96卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1789267

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two previously unreported PbTiO3-Bi((BB')-B-')O-3 type solid solution systems possessing a high dielectric transition Curie temperature (T-C) at their morphotropic phase boundary (MPB) were investigated. Both Bi((BB')-B-')O-3 type compounds, Bi(Mg1/2Ti1/2)O-3 and Bi(Mg1/2Zr1/2)O-3, possess a low tolerance factor and display extensive solid solubility with PbTiO3. Dielectric and structural properties of the MPB systems were measured. Using a relationship presented in this paper, which relates the tolerance factor and the position of the MPB in PbTiO3 based systems, the approximate compositional position of the MPB in these systems was accurately predicted prior to synthesis. It is proposed that this relationship can be used as a guide in the search for PbTiO3 based MPB systems. (C) 2004 American Institute of Physics.

引用

页码：4405 / 4410

页数：6

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