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

作　　者：Ruigang Qiu Feifei Guo Jie Wu Wenqiang Bai Yifei Chen Hongqiao Zhou Wei Long Xiaojuan Li Pinyang Fang Zhonghua Dai Jie Dong Zengzhe Xi 

机构地区：[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

出　　处：《Journal of Materials Science & Technology》2024年第32期114-124,共11页材料科学技术(英文版)

基　　金：supported by the National Natural Science Foun-dation of China under Grant No.11704249;the Natural Science Foundation of Shaanxi Provincial Department of Education under Grant No.20JK0667;the President’s Fund of Xi’an Technologi-cal University under Grant No.XGPY200204.

摘　　要：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/B2 O3 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:ε_(r)~3100,tanδ~0.8%,d_(33)~1030 pC N^(-1),d_(33)·g_(33)~34.2×10^(-12) m^(2) N^(-1),d_(33)∗~1490 pm V^(-1)@5 kV cm^(-1),Smax~0.26%@20 kV cm^(-1) and H_(s)~8.5%.In the meantime,good temperature stability is observed in the Cu/B-T textured ceramic with a variation of d_(33)∗@20 kV cm^(-1) and annealed d_(33) lower than 9.68%and 18.1%over a wide temperature range of 25-140°C.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.

关 键 词：PSN-PMN-PT Textured ceramics Grain orientation Sintering aids PIEZOELECTRIC Temperature stability 

分 类 号：TQ1[化学工程]