Electrical properties of bismuth layer-structured ferroelectrics

Electrical properties of bismuth layer-structured ferroelectrics
复制标题

铋层状结构铁电体的电性能

DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
T. Takenaka
T. Takenaka
中科院分区：
--
文献类型：
--
作者：
H. Nagata;Takeshi Takahashi;Y. Yano;T. Takenaka

文献摘要

被引文献

相似文献

本文研究了铋层状结构铁电陶瓷Srm-3+ xBi 4-xTim-xTaxO 3 m +3（m=2，x = 1 ~ 2 m=3，x=0 ~ 2）[SBTTm（x）]的铁电和压电性能。从D-E电滞回线的测量结果来看，SBTT 3（x）体系中SBTT 3（0.3）的回复极化强度Pr最大（Pr =12.3 μC/cm 2），而SBTT 2的矫顽场Ec随Ta浓度的降低而增大。热锻SBTT 3（0.3）的机电耦合系数k33和压电常数d33相对较高，分别为0.37和45.3pC/N。SBTT 2（1.5）陶瓷的机械品质因数，Q m，是一个高值超过8000。
Abstract Bismuth layer-structured ferroelectrics (BLSF), Srm-3+xBi4-xTim-xTaxO3m+3 (m=2, x = 1∼2 m=3, x=0∼2) [SBTTm(x)] ceramics are studied on their ferroelectric and piezoelectric properties. From the measurement of D-E hysteresis, the remanent polarization, P r of SBTT3(0.3) was the largest (P r=12.3 μC/cm2) in the SBTT3(x) system and coercive field, E c of SBTT2 becomes larger with decreasing the amount of Ta concentration. The electromechanical coupling factor, k 33 and the piezoelectric constant, d 33 of the hot-forged SBTT3(0.3) were relatively high values of 0.37 and 45.3 pC/N. The mechanical quality factor, Q m, of the SBTT2(1.5) ceramic was a high value of more than 8000.