Composition design of PMN-PH-PT piezoelectric ceramics for high-temperature actuator applications

Rongfeng Zhu; Bijun Fang; Shuai Zhang; Xiaolong Lu; Jianning Ding

doi:10.1088/2053-1591/ab7969

Materials Research Express (Jan 2020)

Composition design of PMN-PH-PT piezoelectric ceramics for high-temperature actuator applications

Rongfeng Zhu,
Bijun Fang,
Shuai Zhang,
Xiaolong Lu,
Jianning Ding

Affiliations

Rongfeng Zhu: School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University , Changzhou 213164, People’s Republic of China; Key Laboratory of Inorganic Functional Material and Device, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
Bijun Fang: ORCiD; School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University , Changzhou 213164, People’s Republic of China
Shuai Zhang: School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University , Changzhou 213164, People’s Republic of China
Xiaolong Lu: School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University , Changzhou 213164, People’s Republic of China
Jianning Ding: School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University , Changzhou 213164, People’s Republic of China; School of Mechanical Engineering, Jiangsu University , Zhenjiang 212013, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/ab7969
Journal volume & issue: Vol. 7, no. 4
p. 046304

Abstract

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High-Curie temperature (T _m ) piezoelectric ceramics 0.15Pb(Mg _1/3 Nb _2/3 )O _3 -xPbHfO _3 -(0.85-x)PbTiO _3 (0.15PMN-xPH-(0.85-x)PT, x = 0.36, 0.38, 0.39, 0.40, 0.42, 0.15PMN-PH-PT) were synthesized by the solid-state reaction method via the columbite precursor route. The synthesized 0.15PMN-PH-PT ceramics exhibit pure perovskite structure with compositions locate near the morphotropic phase boundary (MPB), where the rhombohedral phase and the tetragonal phase coexist. The sintered samples present high densification, in which the 0.15Pb(Mg _1/3 Nb _2/3 )O _3 -0.38PbHfO _3 -0.47PbTiO _3 (0.15PMN-0.38PH-0.47PT) ceramics present the highest relative density, being 97.76%. The dielectric performance-temperature curves measured at different frequencies, the Curie-Weiss law fitting and the quadratic law fitting indicate that the ferroelectric phase transition from ferroelectric phase to paraelectric phase occurred at T _0 in the 0.15PMN-PH-PT ceramics is driven by the displacive phase transition, and the 0.15PMN-PH-PT ceramics belong to normal ferroelectrics with diffused phase transition characteristic. Due to the MPB effect and high relative density, the 0.15PMN-0.38PH-0.47PT ceramics exhibit the best integral electrical properties, excellent thermal stability and large electric field induced strain, which present prospect promising for actuator applications under elevated environmental temperatures.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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