MODIFICATION OF THE B-SITE ORDER OF PBMG1/3NB2/3O3 CERAMICS BY THERMAL ANNEALING OR BY LA-DOPING

被引：53

作者：

DEMATHAN, N ^{[1
]}

HUSSON, E ^{[1
]}

GAUCHER, P ^{[1
]}

MORELL, A ^{[1
]}

机构：

[1] THOMSON CSF,CENT RECH LAB,F-91401 ORSAY,FRANCE

来源：

MATERIALS RESEARCH BULLETIN | 1990年 / 25卷 / 04期

关键词：

D O I：

10.1016/0025-5408(90)90177-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interesting properties of the perovskite PbMg 1 3Nb 2 3O3 for the manufacture of multilayer capacitors are due to its ferroelectric diffuse phase transition. The influence of annealing or La-doping of PMN ceramics on the diffuse character of the phase transition is studied. A model is considered, according to which the composition fluctuations induced by the growth of the 1:1 ordered domains promotes the diffuse behavior of the phase transition. The peculiar ferroelectric behavior of the annealed ceramics is discussed. © 1990.

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页码：427 / 434

页数：8

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