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
收藏
页码：7015 / 7020
页数：6
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