sm2o3掺杂Ba(Zr0.02Ti0.98)O3传感器陶瓷的研究

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-05-04 DOI:10.1080/01411594.2023.2205591

T. S. Thejas, B. Sahoo, P. Panda

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引用次数: 0

摘要

摘要:合成了Sm2O3(0.02 ~ 0.06)质量分数不同的Ba(Zr0.02Ti0.98)O3 (BZT)样品，并在1100℃下煅烧4 h。将煅烧的粉末制成圆形球团，在1450℃下烧结2h。烧结和极化后的样品用于各种电性能的测量。对于0.02 wt.% sm2o3掺杂的BZT，获得了372 pC/N的最大压电电荷常数(d33)。在居里温度(T c)为125℃时，该成分在100 Hz时的介电常数(K = 15,855)最大。扫描电镜(SEM)研究表明，随着Sm2O3含量的增加，晶粒尺寸减小。在很大程度上，较低浓度的sm2o3掺杂BZT组合物具有较高的d33可以适用于振动传感器和加速度计的应用。

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A study on Sm2O3-doped Ba(Zr0.02Ti0.98)O3 ceramics for sensor applications

ABSTRACT Ba(Zr0.02Ti0.98)O3 (BZT) samples with various weight percentages of Sm2O3 (0.02–0.06) were synthesized and calcined at 1100°C for 4 h. Circular pellets were prepared using calcined powders and sintered at 1450°C for 2 h. The sintered and poled samples were used for the measurement of various electrical properties. Maximum piezoelectric charge constant (d 33) of 372 pC/N obtained for 0.02 wt.% Sm2O3-doped BZT. Dielectric constant (K = 15,855) at 100 Hz was found maximum for this composition at Curie temperature (T c) of 125°C. Scanning electron microscopy (SEM) study revealed a decrease in grain size with an increase in Sm2O3 content. Largely, a lower concentration of Sm2O3-doped BZT compositions with higher d 33 could be suitable for vibration sensor and accelerometer 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.