ZnZrNb2O8 氧化物陶瓷的结构特征和微波介电性能

IF 2.6 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Ashwini Kumar, Poorva Sharma, Fujun Qiu
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引用次数: 0

摘要

本研究探讨了 ZnZrNb2O8 陶瓷的合成、结构分析和微波介电特性。ZnZrNb2O8 陶瓷通过固态反应法制备,并在 1,000°C 至 1,200°C 的温度下烧结 4 小时。扫描电子显微镜(SEM)研究揭示了晶粒大小和孔隙率等微观结构特征,揭示了材料的形态细节。在微波频率范围内进行的介电性能测试表明,陶瓷的介电常数(εr)与相对密度之间存在相关性。重要的是,陶瓷表现出合适的介电常数和较低的介电损耗,表明它们适合微波应用。值得注意的是,在 1,150°C 下烧结 4 小时的 ZnZrNb2O8 陶瓷具有出色的微波介电性能(εr = 27.2、Q × f = 54,500 GHz 和 τf = -60 ppm/°C)。这些发现强调了 ZnZrNb2O8 陶瓷作为高频应用先进材料的潜力,包括滤波器、谐振器和其他微波器件,从而为下一代电信技术的发展做出了巨大贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structure characteristics and microwave dielectric properties of ZnZrNb2O8 oxide ceramics
This study investigates the synthesis, structural analysis, and microwave dielectric characteristics of ZnZrNb2O8 ceramics, prepared via solid-state reaction method and subjected to sintering at temperatures ranging from 1,000°C to 1,200°C for 4 h. X-ray diffraction (XRD) analysis confirms the successful formation of ZnZrNb2O8 phase, with a monoclinic wolframite phase. Scanning electron microscopy (SEM) investigations unveil microstructural features such as grain size and porosity, reveals material’s morphological details. Dielectric properties conducted in the microwave frequency regime show a correlation between dielectric constant (εr) and relative density of the ceramics. Importantly, the ceramics exhibited a suitable dielectric constant and low dielectric loss, indicative of their suitability for microwave applications. Remarkably, ZnZrNb2O8 ceramics sintered at 1,150°C for 4 h exhibit excellent microwave dielectric properties (εr = 27.2, Q × f = 54,500 GHz, and τf = −60 ppm/°C). These findings underscore the potential of ZnZrNb2O8 ceramics as advanced materials for high-frequency applications, including filters, resonators, and other microwave devices, thus contributing significantly to the advancement of next-generation telecommunications technologies.
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来源期刊
Frontiers in Materials
Frontiers in Materials Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
6.20%
发文量
749
审稿时长
12 weeks
期刊介绍: Frontiers in Materials is a high visibility journal publishing rigorously peer-reviewed research across the entire breadth of materials science and engineering. This interdisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers across academia and industry, and the public worldwide. Founded upon a research community driven approach, this Journal provides a balanced and comprehensive offering of Specialty Sections, each of which has a dedicated Editorial Board of leading experts in the respective field.
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