Tailoring the structure and piezoelectric properties of BiFeO3-(K0.5Bi0.5)TiO3-PbTiO3 ceramics for high temperature applications

被引：36

作者：

Bennett, J. ^{[1
]}

Bell, A. J. ^{[1
]}

Stevenson, T. J. ^{[1
]}

Comyn, T. P. ^{[1
]}

机构：

[1] Univ Leeds, Sch Proc Environm & Mat Engn, Inst Mat Res, Leeds LS2 9JT, W Yorkshire, England

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 15期

基金：

英国工程与自然科学研究理事会;

关键词：

X-RAY-DIFFRACTION; LEAD TITANATE; SENSORS; SYSTEM; ACTUATORS; STRAIN;

D O I：

10.1063/1.4824652

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

There is a growing requirement for piezoelectric materials and systems which can operate in extreme environments, for example, oil & gas, and aerospace. Here, we present the high temperature BiFeO3-K0.5Bi0.5TiO3-PbTiO3 (BF-KBT-PT) polycrystalline perovskite system. X-ray diffraction, impedance analysis, and Berlincourt measurements reveal a large region of phase coexistence, which can be tailored to optimise performance; T-c and the tetragonal spontaneous strain correlate strongly with the PbTiO3 concentration. The highest temperature composition has a d(33) of 140 pmV(-1) with a T-c = 542 degrees C, occupying previously unchartered territory on the classical d(33)-T-C plot. (C) 2013 AIP Publishing LLC.

引用

页数：5

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