Enhanced grain orientation degree and electrical properties in PSN-PMN-PT textured ceramics under the effect of sintering aids

Ruigang Qiu ¹Feifei Guo ¹Jie Wu ²Wenqiang Bai ¹Yifei Chen ¹Hongqiao Zhou ¹Wei Long ¹Xiaojuan Li ¹Pinyang Fang ¹Zhonghua Dai ³Jie Dong ⁴Zengzhe Xi¹

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作者信息

1. Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices,School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an 710021,China
2. Electronic Materials Research Lab,Key Lab of Education Ministry and State Key Laboratory for Mechanical Behavior of Materials,School of Electronic Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,China
3. Laboratory of Thin Film Techniques and Optical Test,Xi'an Technological University,Xi'an 710032,China
4. The National Engineering Research Center of Light Alloy Net Forming,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
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Abstract

In this work,texturing is proposed to improve the piezoelectric response of PSN-PMN-PT ceramics.The PSN-PMN-PT textured ceramic with a Lotgering factor F001 higher than 99％was synthesized by the liquid-phase-assisted template grain growth(TGG)method.The addition of CuO/B2O3 sintering aids improves the BT templates induced grain orientation growth behavior significantly.In comparison with its random counterpart,the Cu/B-T textured ceramic exhibits a high Lotgering factor F001 of 99％and significantly enhanced dielectric and piezoelectric responses:εr～3100,tanδ～0.8％,d33～1030 pC N-1,d33·g33～34.2 × 10-12 m2 N-1,d33*～1490 pm V-1@5 kV cm-1,Smax～0.26％@20 kV cm-1 and Hs～8.5％.In the meantime,good temperature stability is observed in the Cu/B-T textured ceramic with a variation of d33*@20 kV cm-1 and annealed d33 lower than 9.68％and 18.1％over a wide temperature range of 25-140 ℃.This work shows that PSN-PMN-PT textured ceramic(Cu/B-T)has great potential for electrome-chanical device applications such as precision actuators,ultrasound transducers,and energy harvesters.

Key words

PSN-PMN-PT/Textured ceramics/Grain orientation/Sintering aids/Piezoelectric/Temperature stability

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出版年

2024

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

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影响因子：0.657

ISSN：1005-0302

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