Effects of Mn doping on the structure and electrical properties of high-temperature BiScO3-PbTiO3-Pb(Zn1/3Nb2/3)O3 piezoelectric ceramics

被引：31
作者：
Yao, Zhonghua [1 ]
Liu, Hanxing
Cao, Minghe
Hao, Hua
Yu, Zhiyong
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Minist Educ, Wuhan 430070, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2011年 / 46卷 / 08期
关键词：
Ceramics; Dielectric properties; Piezoelectricity; LEAD-ZIRCONATE-TITANATE; TERNARY-SYSTEM; FERROELECTRICS; PHASE; FIELD;
D O I：
10.1016/j.materresbull.2011.03.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Mn addition on the structure, ferroelectric, and piezoelectric properties of the 0.35BiScO(3)-0.60PbTiO(3)-0.05Pb(Zn1/3Nb2/3)O-3 ceramics were studied. The results demonstrate that the addition of small amounts of Mn did not cause a remarkable change in crystal structure, but resulted in an evident evolution in microstructure and ferro-piezoelctric properties. The addition of Mn can induce combinatory "hard" and "soft" piezoelectric characteristics due to aliovalent substitutions. The optimal electrical properties are obtained in the 0.25 mol% Mn-doped composition with a high Curie temperature, indicating that Mn doping contributes to the electrical properties of the ceramics. It can be expected that the improved piezoelectric material can be a promising candidate for high-temperature piezoelectric applications. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：1257 / 1261
页数：5
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