J. Mater. Sci. Technol. ›› 2024, Vol. 199: 114-124.DOI: 10.1016/j.jmst.2024.02.051

• Research article • Previous Articles     Next Articles

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

Ruigang Qiua, Feifei Guoa,*, Jie Wub,*, Wenqiang Baia, Yifei Chena, Hongqiao Zhoua, Wei Longa, Xiaojuan Lia, Pinyang Fanga, Zhonghua Daic, Jie Dongd, Zengzhe Xia,*   

  1. aShaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China;
    bElectronic 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;
    cLaboratory of Thin Film Techniques and Optical Test, Xi'an Technological University, Xi'an 710032, China;
    dThe National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2023-11-29 Revised:2024-02-08 Accepted:2024-02-21 Published:2024-11-10 Online:2024-11-07
  • Contact: *E-mail addresses: guofeifei19850106@163.com (F. Guo), wujie019@xjtu.edu.cn (J. Wu), zzhxi@xatu.edu.cn (Z. Xi)

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, d33g33 ∼ 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 °C. This work shows that PSN-PMN-PT textured ceramic (Cu/B-T) has great potential for electromechanical 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