Structural, dielectric and ferroelectric properties of Ba(1-x)PbxTi(1-x)ZrxO3 ceramics

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2022-12-31 DOI:10.1080/01411594.2022.2159823

Khushbu, S. Sushanth Kumar, Anupinder Singh, Parveen Kumar

引用次数: 0

Abstract

ABSTRACT Polycrystalline ceramic samples with compositional formula Ba(1-x)PbxTi(1-x) ZrxO3 (x = 0, 0.05, 0.075, 0.10, 0.15, 0.20) were prepared by the conventional solid-state reaction route (SSR). All the samples were sintered at 1300°C for 4 h in closed high-density alumina crucibles with the lead-rich environment. Sintered samples were subjected to X-ray diffraction (XRD) analysis and scanning electron microscope (SEM) for structural analysis. XRD analysis confirmed tetragonal to orthorhombic phase transition for samples with x ≥ 0.10. The relative permittivity and loss were measured as a function of temperature at 1, 10, 100 and 1000 kHz frequencies. The value of relative permittivity at room temperature was found to be increased with an increase in x. PE hysteresis loops were recorded for all the samples (at 30°C and 50 Hz). It was found that the sample with x = 0.05 shows the maximum value of remanent polarization ‘Pr’ = 18.51 µC/cm2.

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Ba(1-x)PbxTi(1-x)ZrxO3陶瓷的结构、介电和铁电性能

采用常规固相反应(SSR)法制备组分为Ba(1-x)PbxTi(1-x) ZrxO3 (x = 0、0.05、0.075、0.10、0.15、0.20)的多晶陶瓷样品。所有样品在封闭的高密度氧化铝坩埚中，在1300℃富铅环境下烧结4h。对烧结后的样品进行了x射线衍射(XRD)分析和扫描电镜(SEM)结构分析。XRD分析证实，x≥0.10的样品由四方向正交相变。在1、10、100和1000 kHz频率下测量了相对介电常数和损耗作为温度的函数。室温下的相对介电常数值随着x的增加而增加。所有样品(在30°C和50 Hz下)都记录了PE磁滞回线。结果表明，当x = 0.05时，样品的剩余极化‘Pr’最大值为18.51µC/cm2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.