通过高温极化，获得了0.35Pb(Ni1/3Nb2/3)O3-x(Pb0.92Ba0.04Sr0.04)ZrO3-(0.65-x)(Pb0.92Ba0.04Sr0.04)TiO3陶瓷的超高压电性能和优异的温度稳定性

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-09-24 DOI:10.1016/j.jeurceramsoc.2025.117849

Mingze Sun , Weiye Nie , Lang Bian , Wenwu Cao

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引用次数: 0

摘要

铁电陶瓷可获得的压电性能取决于极化的程度，在极化中畴重新取向发生以对准所有极化。由于非180°畴重定向过程中产生的应变，传统的极化方法不能使陶瓷完全极化。x = 0.26的0.35Pb(Ni1/3Nb2/3)O3-x(Pb0.92Ba0.04Sr0.04)ZrO3-(0.65-x)(Pb0.92Ba0.04Sr0.04)TiO3压电陶瓷在150℃、1 kV/mm高温极化条件下，获得了超高的压电系数d33为1280 pC/N，残余极化Pr为25.4 μC/cm2。值得注意的是，与传统极化样品（d33 = 974 pC/N, Pr = 24.2 μC/cm2, εr = 5641）相比，得到的d33值提高了31.4 %。对于x = 0.24样品，高温极化可以同时实现非常大的压电系数（d33 = 983 pC/N）和高温稳定性（Δd33/d33- rt = 4.88 %，高达65℃）。高温极化的增强机制是由于形成了更小的畴。

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Achieving ultrahigh piezoelectric performance and superior temperature stability in 0.35Pb(Ni1/3Nb2/3)O3-x(Pb0.92Ba0.04Sr0.04)ZrO3-(0.65-x)(Pb0.92Ba0.04Sr0.04)TiO3 ceramics through high-temperature poling

The attainable piezoelectric properties of ferroelectric ceramics depend on the degree of poling, in which domain reorientation occurred to align all polarizations. Conventional poling cannot fully pole the ceramic due to the strain generated during the non-180° domain reorientation. The 0.35Pb(Ni_1/3Nb_2/3)O₃-x(Pb_0.92Ba_0.04Sr_0.04)ZrO₃-(0.65-x)(Pb_0.92Ba_0.04Sr_0.04)TiO₃ piezoceramic with x = 0.26 demonstrates remarkable piezoelectric performance when subjected to high-temperature poling at 150°C under 1 kV/mm, achieving an ultra-high piezoelectric coefficient d₃₃ of 1280 pC/N, along with remnant polarization P_r of 25.4 μC/cm². Notably, the obtained d₃₃ value exhibits a 31.4 % enhancement compared to traditional poled samples (d₃₃ = 974 pC/N, P_r = 24.2 μC/cm², ε_r = 5641). For the x = 0.24 sample, high-temperature poling can simultaneously achieve very large piezoelectric coefficient (d₃₃ = 983 pC/N) and high temperature stability (Δd₃₃/d_33-RT = 4.88 % up to 65 °C). The enhancement mechanism of high-temperature poling is due to the formation of much smaller domains.

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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.