High-Tm relaxor ferroelectrics:: 0.3BiScO3-0.6PbTiO3-0.1Pb(Mn1/3Nb2/3)O3

被引：30

作者：

Ryu, J ^{[1
]}

Priya, S ^{[1
]}

Uchino, K ^{[1
]}

机构：

[1] Penn State Univ, Int Ctr Actuators & Transducers, Inst Mat Res, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 02期

关键词：

D O I：

10.1063/1.1536028

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-T-m relaxor materials are being developed for high-temperature high-power density electrotransduction applications and high-temperature capacitors in automobile applications. A relaxor ferroelectric material of composition 0.3BiScO(3)-0.6PbTiO(3)-0.1Pb(Mn1/3Nb2/3)O-3 having a very high dielectric maximum of similar to350 degreesC is reported. The relaxor behavior is confirmed by studying polarization relaxation and frequency and temperature dependent dielectric behavior. The dielectric constant in the low-temperature region of 10 degreesC<T<150 degreesC is found to be independent of the frequency with a temperature gradient of partial derivativeepsilon/partial derivativeT=2.5/degreesC. The room-temperature magnitude of dielectric constant is similar to600. (C) 2003 American Institute of Physics.

引用

页码：251 / 253

页数：3

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