Dielectric and electrostrictive properties of PMNT near MPB

被引：10

作者：

Kumar, Pawan ^{[1
]}

Prakash, Chandra ^{[2
]}

Goel, T. C.

机构：

[1] Natl Inst Technol, Dept Phys, Rourkela 769008, India

[2] DRDO Bhawan, Directorate ER & IPR DRDO, New Delhi 110011, India

来源：

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2007年 / 8卷 / 06期

关键词：

relaxor; PMNT; MPB; T-c; strain%; hysteresis%;

D O I：

10.1016/j.stam.2007.05.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dielectric constant (epsilon(r)), dielectric loss (tan delta) and strain induced by electric field in lead magnesium niobate-lead titanate (PMN-PT/PMNT) solid solutions in the morphotropic phase boundary (MPB) region at different sintering temperatures have been studied. epsilon(r), and tan delta increase, whereas Curie phase transition range decreases with the increase in sintering temperature. Strain levels in the range of 0.07-0.2% were obtained. A high saturated strain% similar to 0.19, a high d(33) coefficient similar to 320pm/V and a low strain hysteresis% similar to 3.5 in PMNT 68/32 composition sintered at 1200 degrees C indicate its suitability for actuator applications. (c) 2007 NIMS and Elsevier Ltd. All rights reserved.

引用

页码：463 / 468

页数：6

共 35 条

[1] Giant electrostriction and stretched exponential electromechanical relaxation in 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 crystals [J].