Reduced dielectric loss and strain hysteresis in (0.97-x)BiScO3-xPbTiO3-0.03Pb(Mn1/3Nb2/3)O3 piezoelectric ceramics
Reduced dielectric loss and strain hysteresis in (0.97-x)BiScO3-xPbTiO3-0.03Pb(Mn1/3Nb2/3)O3 piezoelectric ceramics
复制标题
DOI：
10.1016/j.ceramint.2015.04.056
复制
发表时间：
2015-09-01
影响因子：
5.2
通讯作者：
Cheng, Jinrong
中科院分区：
文献类型：
--
作者：
Chen, Jianguo;Dong, Yingjie;Cheng, Jinrong
(0.97采用固相反应法制备了（1- x）BiScO 3-xPbTiO（3）-0.03Pb（Mn 1/3 Nb 2/3）O-3（BS-PT-PMnN）陶瓷。X射线衍射分析表明，BS-PT-PMnN陶瓷的准同型相界（MPB）位于x=0.58附近。MPB组合物获得高居里温度（437 ℃）、大压电常数（300 pC/N）、低介电损耗（0.015）和小应变滞后（20%）。其介电损耗和应变滞后分别降低到纯BiScO 3-PbTiO 3（BS-PT）陶瓷的三分之一和一半。此外，BS-PT-PMnN陶瓷的最大振动速度为0.85 ms（-1），明显上级BS-PT（0.15 ms（-1））和改性PZT（0.4 ms（-1））陶瓷。这些结果表明，BS-PT-PMnN陶瓷是很有前途的候选人，高温压电应用。(C)2015 Elsevier Ltd和Techna Group S.r.l. All rights reserved.
(0.97 - x)BiScO3-xPbTiO(3)-0.03Pb(Mn1/3Nb2/3)O-3 (BS-PT-PMnN) ceramics were prepared by solid-state reaction method. X-ray diffraction analysis revealed that the morphotropic phase boundary (MPB) of BS-PT-PMnN ceramics located near x=0.58. The high Curie temperature (437 degrees C), large piezoelectric constant (300 pC/N), low dielectric loss (0.015) and small strain hysteresis (20%) were obtained for the MPB composition. Its dielectric loss and strain hysteresis were reduced down to one third and half those of pure BiScO3-PbTiO3 (BS-PT) ceramics, respectively. In addition, the maximum vibration velocity of the BS-PT-PMnN ceramics was 0.85 ms(-1), much superior to those of BS-PT (0.15 ms(-1)) and modified PZT (0.4 ms(-1)) ceramics. These results indicated BS-PT-PMnN ceramics were promising candidates for high temperature piezoelectric applications. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.