High-stability quinary lead-based piezoelectric ceramics with high piezoelectric properties

Author:

He Xingchen1ORCID,Lu Yuanhao1,Chu Tao2,Liao Wenyong1,Li Tao1ORCID,Liu Xiaoli1,Liang Lianyao1,Li Huayong1,Dai Xingyu1,Liu Ying3,Zhou Liujiang4

Affiliation:

1. Neutron Scattering Technical Engineering Research Center, School of Mechanical Engineering, Dongguan University of Technology 1 , Dongguan 523808, People’s Republic of China

2. Guizhou Zhenhua Hongyun Electronics Co., Ltd. 2 , Guiyang, Guizhou 550018, China

3. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 3 , Fuzhou 350002, China

4. School of Physics, State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China 4 , Chengdu, Sichuan 611731, China

Abstract

Piezoceramics with the formula Pb0.93Sr0.06Ba0.01(Mg1/3Nb2/3)0.035(Ni1/3Nb2/3)0.2 (Sb1/2Nb1/2)0.015(ZrxTi1−x)0.75O3 + 0.5 wt. % Li2CO3, where x = 0.51, 0.50, 0.49, 0.48, 0.47, and 0.46, have been made using the one-step solid-state method. The phase structure and electrical properties were systematically investigated in the quinary system. Here, the crystalline structure transformed gradually from the rhombohedral to tetragonal phase with decreasing Zr content. More importantly, the effective piezoelectric coefficient d33* of the ceramics demonstrates an excellent thermal stability below the Curie temperature. Meanwhile, piezoelectric ceramics with x = 0.49 exhibited the extraordinary electrical properties near the morphotropic phase boundary. A huge piezoelectric coefficient d33 = 853 pC/N, high Curie temperature TC = 152 °C, and the electromechanical coupling coefficients kp = 67.4%, kt = 63.5%, and k33 = 67.4% were obtained at the composition of x = 0.49, which may lead a promising future for the transducer applications.

Funder

National Natural Science Foundation of China

Guangdong Provincial Department of Science and Technology

Dongguan Science and Technology Bureau

Publisher

AIP Publishing

Subject

General Physics and Astronomy

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