Structural and electrical properties of Sm3+ substituted PZT ceramics

被引：27

作者：

Pandey, S. K. ^{[1
]}

Thakur, O. P. ^{[1
]}

Bhattacharya, D. K. ^{[1
]}

Prakash, Chandra ^{[2
]}

Chatterjee, Ratnamala ^{[3
]}

机构：

[1] Solid State Phys Lab, Delhi 110054, India

[2] DHQ, DRDO Bhawan, New Delhi 110011, India

[3] Indian Inst Technol, Dept Phys, New Delhi 110016, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 468卷 / 1-2期

关键词：

PZT; Samarium; Ferroelectric; Electromechanical coefficients; Piezoelectric; DIELECTRIC-PROPERTIES;

D O I：

10.1016/j.jallcom.2008.01.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Samarium modified lead zirconate titanate (PSZT: Pb1-xSmx(Zr0.65Ti0.35)O-3: x=0, 0.02, 0.04, 0.06) ceramics were synthesized by solid state ceramic route. XRD shows single-phase formation with rhombohedral structure up to x=0.04. With Sm-substitution, the grain size first increases up to x=0.02 and then decreases. A metal/ferroelectric/metal (MFM) structure was made by depositing gold electrode on the flat surfaces for electrical measurements. All samples show normal ferroelectric behaviour. however, it squareness of P-E loop (polarization vs. electric field) was observed to increase with Sm content. Higher electromechanical coupling coefficients (K-p and K-t) have been achieved for the PZT with 6 mol % Sm Substitution and having fine grain size. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：356 / 359

页数：4

共 13 条

[1] Structural, dielectric and electrical properties of Sm-modified Pb(SnTi)O3 ferroelectric system [J].