Improving the piezoelectric properties of Pb(Ni, Nb)O3-Pb(Hf, Ti)O3 ceramics through Nd2O3 addition

被引：7

作者：

Zhang, Shiyi ^{[1
]}

Cheng, Mengdi ^{[1
]}

Yan, Yangxi ^{[1
]}

Li, Zhimin ^{[1
]}

Wang, Pangpang ^{[2
]}

Murakami, Ri-ichi ^{[3
]}

Zhang, Dongyan ^{[1
]}

机构：

[1] Xidian Univ, Sch Adv Mat & Nanotechnol, 266 Xinglong Sect Xifeng Rd, Xian 710126, Peoples R China

[2] Fukuoka Ind Acad Symphon FiaS, Inst Syst Informat Technol & Nanotechnol ISIT, Nanomat Grp, 4-1 Kyudaishinmachi,Nishi Ku, Fukuoka 8190388, Japan

[3] Chengdu Univ, Sch Mech Engn, 2025 Chengluo Ave, Chengdu 610106, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 960卷

基金：

中国国家自然科学基金;

关键词：

PNN-PHT ceramics; High piezoelectricity; Local structural heterogeneity; Relaxor MPB; THERMAL-STABILITY; TERNARY CERAMICS; NEODYMIUM; BEHAVIOR; STRAIN;

D O I：

10.1016/j.jallcom.2023.170778

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-performance piezoelectric materials, whose displacement is sensitive to an external field and vice versa, are constantly required in electromechanical applications. Here, we introduce Nd3+ ions into 0.49Pb (Nb2/3Ni1/3)O3-0.51Pb(Hf0.3Ti0.7)O3 (PNN-PHT) ceramics via the solid-state method. By constructing a ferroelectric system in the morphotropic phase boundary region and exploiting the synergistic effect of polar nanoregions and an enhanced local structural heterogeneity, excellent piezoelectricity and dielectric properties are obtained. The optimized piezoelectric coefficient d33, dielectric constant & epsilon;33, electromechanical coupling factor kp, and dielectric loss tan & delta; are 1125 pC/N, 8667, 0.66 %, and 1.94 %, respectively. The Vogel-Fulcher law and relaxation analysis were adopted to understand the origin of the high piezoelectricity. The Rayleigh analysis method was used to study the intrinsic and extrinsic contributions to the piezoelectricity of the Nd-doped PNN-PHT ceramics, the extrinsic contribution was found to be up to 19 % in the optimal region (PNN-PHT + 0.4 at. % Nd2O3). Moreover, according to in-situ ferroelectric measurements and fatigue measurements, the PNN-PHT + 0.4 at. % Nd2O3 ceramic exhibits excellent fatigue resistance and stable piezoelectric behavior at 60 celcius. This work provides an approach to realize high-performance piezoelectric ceramics with good electromechanical stability under external condition, which is expected to expand the range of application of piezoelectric materials, e.g., for transducers. & COPY; 2023 Elsevier B.V. All rights reserved.

引用

页数：11