Study of BaTiO3-doped Bi2O3/ZnO varistor microstructure and its electrical characteristics

Q2 Mathematics
Faiçal Kharchouche, Yousra Malaoui, O. Bouketir
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引用次数: 0

Abstract

This study presents the characterization and optimization of BaTiO3-doped ZnO-based varistors for electrical and electronic applications. The varistors were prepared using a conventional ceramic procedure and were sintered at a temperature of 1,000 °C with different concentrations of BaTiO3 (0 and 3 mol%) added to the Bi2O3/ZnO-based varistor composition (99.5 mol% ZnO and 0.5 mol% Bi2O3). The results showed that the addition of BaTiO3 led to the formation of various oxides and solid solutions, such as Bi12TiO20, BaTiO3, and (Bi2O3)0.80 (BaO)0.20. The dielectric constant and grain size decreased with increasing BaTiO3 content, while the non-linearity coefficient, electric fields (Eb) increased, and dielectric loss (Tanδ) decreased. The optimized varistor contains 2 mol% BaTiO3 and an electric field of 148.08 V/mm, which are superior to those of the BaTiO3/Bi2O3/ZnO-based varistor. During this study, we were able to observe that a slight addition of BaTiO3 will increase the breakdown voltage and the coefficient of nonlinearity and this will allow us to develop low-dimensional varistors and install them in the high-voltage domain.
掺杂 BaTiO3 的 Bi2O3/ZnO 变阻器微观结构及其电气特性研究
本研究介绍了用于电气和电子应用的掺杂 BaTiO3 的氧化锌基压敏电阻的表征和优化。变阻器采用传统陶瓷程序制备,并在 1,000 °C 温度下烧结,在 Bi2O3/ZnO 基变阻器成分(99.5 摩尔 ZnO 和 0.5 摩尔 Bi2O3)中添加了不同浓度的 BaTiO3(0 和 3 摩尔%)。结果表明,加入 BaTiO3 后形成了各种氧化物和固溶体,如 Bi12TiO20、BaTiO3 和 (Bi2O3)0.80 (BaO)0.20。随着 BaTiO3 含量的增加,介电常数和晶粒尺寸减小,而非线性系数、电场(Eb)增加,介电损耗(Tanδ)减小。优化后的变阻器含有 2 mol% 的 BaTiO3,电场为 148.08 V/mm,优于基于 BaTiO3/Bi2O3/ZnO 的变阻器。在这项研究中,我们观察到少量添加 BaTiO3 就能提高击穿电压和非线性系数,这将使我们能够开发低维变阻器,并将其应用于高压领域。
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来源期刊
CiteScore
2.90
自引率
0.00%
发文量
782
期刊介绍: The aim of Indonesian Journal of Electrical Engineering and Computer Science (formerly TELKOMNIKA Indonesian Journal of Electrical Engineering) is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field of electrical engineering. Its scope encompasses the applications of Telecommunication and Information Technology, Applied Computing and Computer, Instrumentation and Control, Electrical (Power), Electronics Engineering and Informatics which covers, but not limited to, the following scope: Signal Processing[...] Electronics[...] Electrical[...] Telecommunication[...] Instrumentation & Control[...] Computing and Informatics[...]
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