Properties of PbFe2/3W1/3O3-PhTiO3 system in the range of morphotropic phase boundary

被引：18

作者：

Mitoseriu, L

Vilarinho, PM

Baptista, JL

机构：

[1] Alexandru Ioan Cuza Univ, Dept Elect, Iasi 6600, Romania

[2] Univ Genoa, DICheP, I-16129 Genoa, Italy

[3] Univ Aveiro, UIMC, Dept Ceram & Glass Engn, P-3810 Aveiro, Portugal

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2002年 / 41卷 / 11B期

关键词：

ceramics; perovskite; relaxors; X-ray diffraction; Raman; polar ordering;

D O I：

10.1143/JJAP.41.7015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The solid solution (1 - x)Pb(Fe2/3W1/3)O-3-XPbTiO3 with x ranging from 0.0 to 1.0 was investigated at T = 300 K in order to determine the composition range corresponding to the morphotropic phase boundary. A change from pseudo-cubic to tetragonal symmetry was found with increasing x. The cell parameters depend on the PbTiO3 amount. In the range of compositions from x = 0.20 to x = 0.37, both pseudo-cubic and tetragonal phases coexist, with different relative amounts. Infrared and Raman experiments confirmed a continuous change in the local ordering of the system. A transition from relaxor to normal ferroelectric behaviour with increasing PbTiO3 addition was shown by the dielectric data. [DOI: 10.1143/JJAP.41.7015].

引用

页码：7015 / 7020

页数：6

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