Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires

被引：23
作者：
Cao, W. P. [1 ]
Li, W. L. [1 ,2 ]
Feng, Y. [1 ,2 ]
Xu, D. [1 ]
Wang, W. [1 ]
Hou, Y. F. [1 ]
Zhang, T. D. [1 ]
Fei, W. D. [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Sci & Technol Precis Heat Proc Met, Harbin 150001, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2015年 / 78卷
关键词：
Ceramics; X-ray diffraction; Dielectric properties; FREE PIEZOELECTRIC CERAMICS; FERROELECTRIC PROPERTIES; ELECTRICAL-PROPERTIES;
D O I：
10.1016/j.jpcs.2014.10.004
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The depolarization temperature (T-d) of piezoelectric materials is an important figure of merit for their application at elevated temperatures. This study focuses on the effect of BaTiO3 (BT) nanowires on T-d and piezoelectric properties of morphotropic-phase-boundary 0.90NBT-0.05KBT-0.05BT ceramics. The results reveal that BaTiO3 nanowires can pin the domain wall, leading to the increase of coercive field (Er) from 21.06 kV/cm to 34.99 kV/cm. The T-d value of 0.90NBT-0.05KBT-0.05BT ceramics can be enhanced approximately 20 degrees C when using BT nanowires instead of BT solution as the raw material. Meanwhile, at the same polarization conditions, the piezoelectric constant of the ceramic added BT nanowires (172 pC/N) is decreased but still remains a larger value compared with those of other lead-free ceramics. The results imply that the addition of BT nanowires into NBT-KBT is a very effective route to improve T-d. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：41 / 45
页数：5
相关论文
共 24 条
[1]   Enhanced electrocaloric effect in lead-free NBT-based ceramics [J].
Cao, W. P. ;
Li, W. L. ;
Xu, D. ;
Hou, Y. F. ;
Wang, W. ;
Fei, W. D. .
CERAMICS INTERNATIONAL, 2014, 40 (07) :9273-9278
[2]   Structure and electrical properties of (Na0.5Bi0.5)1-xBaxTiO3 piezoelectric ceramics [J].
Chen, Min ;
Xu, Qing ;
Kim, Bok Hee ;
Ahn, Byeong Kuk ;
Ko, Jung Hoon ;
Kang, Woo Jin ;
Nam, O. Jeong .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (04) :843-849
[3]   Electromechanical and ferroelectric properties of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-(Bi1/2Li1/2)TiO3-BaTiO3 lead-free piezoelectric ceramics for accelerometer application [J].
Choy, S. H. ;
Wang, X. X. ;
Chan, H. L. W. ;
Choy, C. L. .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2007, 89 (03) :775-781
[4]   Large Electric Field-Induced Strain and Antiferroelectric Behavior in (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics [J].
Guo, Yiping ;
Liu, Yun ;
Withers, Ray L. ;
Brink, Frank ;
Chen, Hua .
CHEMISTRY OF MATERIALS, 2011, 23 (02) :219-228
[5]   Phase transition temperature and electrical properties of (Bi1/2Na1/2)TiO3-(Bi1/2A1/2)TiO3 (A=Li and K) lead-free ferroelectric ceramics [J].
Hiruma, Yuji ;
Yoshii, Kazushige ;
Nagata, Hajime ;
Takenaka, Tadashi .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (08)
[6]   Phase transition temperatures and piezoelectric properties of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-BaTiO3 lead-free piezoelectric ceramics [J].
Hiruma, Yuji ;
Nagata, Hajime ;
Takenaka, Tadashi .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (9B) :7409-7412
[7]   Phase diagrams and electrical properties of (Bi1/2Na1/2)TiO3-based solid solutions [J].
Hiruma, Yuji ;
Nagata, Hajime ;
Takenaka, Tadashi .
JOURNAL OF APPLIED PHYSICS, 2008, 104 (12)
[8]   Morphotropic phase boundary in (1-x)Bi0.5Na0.5TiO3-xK0.5Na0.5NbO3 lead-free piezoceramics [J].
Kounga, Alain Brice ;
Zhang, Shan-Tao ;
Jo, Wook ;
Granzow, Torsten ;
Roedel, Juergen .
APPLIED PHYSICS LETTERS, 2008, 92 (22)
[9]   Phase structure and piezoelectric properties of NBT-KBT-BT ceramics prepared by sol-gel flame synthetic approach [J].
Li, W. L. ;
Cao, W. P. ;
Xu, D. ;
Wang, W. ;
Fei, W. D. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 613 :181-186
[10]   Piezoelectric and ferroelectric properties of Na0.5Bi0.5TiO3-K0.5Bi0.5TiO3-BaTiO3 piezoelectric ceramics [J].
Li, YM ;
Chen, W ;
Xu, Q ;
Zhou, J ;
Gu, XY .
MATERIALS LETTERS, 2005, 59 (11) :1361-1364
123