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Integrated Ferroelectrics
An International Journal
Volume 181, 2017 - Issue 1: Proceedings of the Fifteenth China International Nanoscience and Technology Symposium (CINSTS16), Part IV
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Original Articles

Synthesis and properties of Pb0.92Sr0.08(Nb1-yTay)2O6 high Curie temperature piezoelectric ceramics

Fengmin WuCollege of Applied Science, Harbin University of Science and Technology, Harbin, ChinaCorrespondence[email protected]
,
Min GaoCollege of Applied Science, Harbin University of Science and Technology, Harbin, China
,
Zhengkui WangCondensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin, China
,
Xunjun HeCollege of Applied Science, Harbin University of Science and Technology, Harbin, China
,
Bin YangCondensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin, China
&
Jiuxing JiangCollege of Applied Science, Harbin University of Science and Technology, Harbin, China
Pages 90-95 | Received 18 Sep 2016, Accepted 07 Mar 2017, Published online: 31 Oct 2017
 
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ABSTRACT

Two-step sintering process was used to prepare Pb0.92Sr0.08(Nb1-yTay)2O6(0 ≤ y ≤ 0.09) ceramics. By XRD diffraction patterns, the components were all formed orthogonal tungsten bronze structure of ferroelectric phase. Through the SEM, after doping Ta5+, the ceramic grains obviously formed a closer packed structure. With the increase of Ta5+ content, grain size decreased. The Ta5+ ions added reduced the Curie temperature, which was still higher than 530°C. Component y = 0.01 had excellent comprehensive performance, the piezoelectric constant of 79 pC/N, the Curie temperature of 562°C, the electromechanical coupling coefficient of 35.33%.

Funding

This research was supported by the National Natural Science Foundation of China under Grant No. 51402075 and 51575149, the National Key Basic Research Program of China (973 Program) under Grant No. 2013CB632900.

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