Tailoring combined “soft” and “hard” piezoelectric properties in MnO2-doped (Ba,Ca)(Zr,Sn,Ti)O3 piezoceramics via N2 annealing

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-03-11 DOI:10.1016/j.jeurceramsoc.2025.117363

Guohui Wang , Pengrong Ren , Xiangcheng Qi , Kai Li , Lang Bian , Xin Wang , Peng Zhang , Chaowei Guo , Fangping Zhuo

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引用次数: 0

Abstract

(Ba_1-xCa_x) (Zr_0.04Sn_0.04Ti_0.92)O₃ (BCZST)-based piezoelectric ceramics were prepared using a solid-state reaction method. The refinement of microstructure significantly enhanced the piezoelectric properties of BCZST. BCZST doped with 2 mol% MnO₂ exhibited an impressive mechanical quality factor (Q_m) of approximately 1045, mainly attributed to the suppression of extrinsic domain switching contributions. However, the MnO₂ doping also resulted in a reduction of the piezoelectric coefficient (d₃₃) to 144 pC/N. Notably, annealing the BCZST + 2 mol% MnO₂ in nitrogen led to the coexistence of multiple phases and increased the intrinsic contribution from polarization rotation. This treatment optimized both the hard and soft piezoelectric properties, yielding a Q_m of 721 and a d₃₃ of 220 pC/N. Our multiscale defect-engineering strategy presents a valuable approach for the design of lead-free piezoelectric ceramics with enhanced hardening effects suitable for high-power applications.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.