Structure and ferroelectric property of Nb-doped SrBi4Ti4O15 ceramics

被引：37

作者：

Hao, Hua ^{[1
]}

Liu, Hanxing ^{[1
]}

Ouyang, Shixi ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Sch Mat Sci & Engn, Key Lab Silicate Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

JOURNAL OF ELECTROCERAMICS | 2009年 / 22卷 / 04期

关键词：

Bismuth layer structure ferroelectrics (BLSF); Dope; Ferroelectric properties;

D O I：

10.1007/s10832-007-9180-9

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nb-doped SrBi4Ti4O15 (SBT) was produced by conventional method. Structural and ferroelectric properties of SBT were examined as a function of niobium composition. Analyzing the structure futures of SBT by XRD, XPS and Raman spectrum, Nb5+ substituted Ti4+ to form NbO6 octahedron and did not change the structure of SBT. The XRD patterns indicated the formation of the single phase of SBT for x = 0.01and 0.03 and secondary phase of Sr3Ti2O7 appeared when x > 0.1. To compare the effect of Nb doping, the ferroelectric properties (hysteresis loop, piezoelectric coefficient) of Nb-doped SBT were measured. The SBT doped with x = 0.15 was found to exhibit higher remanent polarization with d (33) = 17 pC/N.

引用

页码：357 / 362

页数：6

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