STUDY OF PHASE TRANSITION IN Bi3TiNbO9-BaBi2Nb2O9 CERAMICS

被引：4

作者：

Adamczyk, M. ^{[1
]}

Kusz, J. ^{[4
]}

Hofmeister, W. ^{[2
]}

Zubko, M. ^{[3
]}

Kozielski, L. ^{[1
]}

Pilch, M. ^{[4
]}

Bochenek, D. ^{[1
]}

Wodecka-Dus, B. ^{[1
]}

机构：

[1] Univ Silesia, Inst Technol & Mechatron, 12 Zytnia St, PL-41200 Sosnowiec, Poland

[2] Johannes Gutenberg Univ Mainz, Inst Geowisenschaften, D-55099 Mainz, Germany

[3] Univ Silesia, Inst Mat Sci, 12 Bankowa St, PL-40007 Katowice, Poland

[4] Univ Silesia, Inst Phys, 4 Uniwersytecka st, PL-40700 Katowice, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2016年 / 61卷 / 03期

关键词：

Dielectric properties; X-ray methods; Grain size; Phase transition; Ceramics; ELECTRICAL-PROPERTIES; BABI2NB2O9; CERAMICS; BI3TINBO9; NIOBIUM;

D O I：

10.1515/amm-2016-0246

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The subject of the paper is lead free bismuth layer structure oxides (1-x)Bi3TiNbO9-xBaBi(2)Nb(2)O(9) (x=0; 1; 2; 3 mol). The influence of Bi3TiNbO9/BaBi2Nb2O9 ratio on dielectric and structural properties was studied in a wide range of temperatures. Change in the ratio causes a decrease in the maximum value of dielectric permittivity and shifts the temperature of epsilon(max)' to low values, leading to linear decreasing of average grain size and linear increasing of ceramics density. These results indicate an augment of the packing degree and the participation of pores are significantly decreased with the increase of BaBi2Nb2O9 compound intake. Moreover, for 0.7Bi(3)TiNbO(9)-0.3BaBi(2)Nb(2)O(9) ceramics the dielectric phase transition is broadened and the properties characteristic for the ferroelectric relaxor appear.

引用

页码：1157 / 1164

页数：8

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