BFN改性PZT基（MPB）陶瓷的结构、介电和压电特性

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-02-08 DOI:10.1080/01411594.2023.2175676

Kahoul Fares, Benseghir Sabrina, Hamzioui Louanes, Guemache Abderrezak, Aillerie Michel, Boutarfaia Ahmed

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引用次数: 1

摘要

xBi（Fe1/3Nb2/3）O3–（1-x）Pb（Zr0.50Ti0.50）O3陶瓷在变晶相边界（MPB）附近的固溶体（BFN–PZT，x = 0.0025、0.005、0.0075、0.01）。比较了添加不同Bi2O3、Fe2O3、Nb2O5含量的样品的相结构、微观结构、介电性能和压电性能。特别是，在x组成附近的BFN–PZT晶体结构中观察到了菱形-四方形态变晶相边界 = 0.005。BFN–PZT陶瓷在x = 0.005：介电常数为847，介电损耗tanδ为0.034，居里温度TC为390°C，电导率σ为0.441（Mohm.m）−1，压电电荷常数d33为416 pC/N，机电耦合因子KP为0.654，机械质量因子Qm为426，是一种用于高强度超声应用的有前途的材料。

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Structural, dielectric and piezoelectric characterization of BFN-modified PZT-based (MPB) ceramics

ABSTRACT The solid solution of xBi(Fe1/3Nb2/3)O3–(1-x)Pb(Zr0.50Ti0.50)O3 ceramics near morphotropic phase boundary (MPB) (BFN–PZT, x = 0, 0.0025, 0.005, 0.0075, 0.01) were prepared by conventional solid-state reaction method. The samples added with different Bi2O3, Fe2O3, Nb2O5 contents were compared in terms of the phase structure, microstructure, dielectric properties, and piezoelectric properties. In particular, rhombohedral-tetragonal morphotropic phase boundary was observed in BFN–PZT crystal structure near the composition of x = 0.005. The BFN–PZT ceramics exhibited the following optimal properties at x = 0.005: dielectric constant ϵr of 847, dielectric loss tanδ of 0.034, Curie temperature TC of 390°C, electrical conductivity σ of 0.441 (Mohm.m)−1, piezoelectric charge constant d33 of 416 pC/N, electromechanical coupling factor KP of 0.654, and mechanical quality factor Qm of 426, making it a promising material for use in high-intensity ultrasound applications.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.