{"title":"ZnZrNb2O8 氧化物陶瓷的结构特征和微波介电性能","authors":"Ashwini Kumar, Poorva Sharma, Fujun Qiu","doi":"10.3389/fmats.2024.1367754","DOIUrl":null,"url":null,"abstract":"This study investigates the synthesis, structural analysis, and microwave dielectric characteristics of ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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 ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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 (<jats:italic>ε</jats:italic><jats:sub><jats:italic>r</jats:italic></jats:sub>) 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, ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> ceramics sintered at 1,150°C for 4 h exhibit excellent microwave dielectric properties (<jats:italic>ε</jats:italic><jats:sub><jats:italic>r</jats:italic></jats:sub> = 27.2, <jats:italic>Q</jats:italic> × <jats:italic>f</jats:italic> = 54,500 GHz, and τ<jats:sub>f</jats:sub> = −60 ppm/°C). These findings underscore the potential of ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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.","PeriodicalId":12524,"journal":{"name":"Frontiers in Materials","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structure characteristics and microwave dielectric properties of ZnZrNb2O8 oxide ceramics\",\"authors\":\"Ashwini Kumar, Poorva Sharma, Fujun Qiu\",\"doi\":\"10.3389/fmats.2024.1367754\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study investigates the synthesis, structural analysis, and microwave dielectric characteristics of ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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 ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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 (<jats:italic>ε</jats:italic><jats:sub><jats:italic>r</jats:italic></jats:sub>) 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, ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> ceramics sintered at 1,150°C for 4 h exhibit excellent microwave dielectric properties (<jats:italic>ε</jats:italic><jats:sub><jats:italic>r</jats:italic></jats:sub> = 27.2, <jats:italic>Q</jats:italic> × <jats:italic>f</jats:italic> = 54,500 GHz, and τ<jats:sub>f</jats:sub> = −60 ppm/°C). These findings underscore the potential of ZnZrNb<jats:sub>2</jats:sub>O<jats:sub>8</jats:sub> 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.\",\"PeriodicalId\":12524,\"journal\":{\"name\":\"Frontiers in Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Frontiers in Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.3389/fmats.2024.1367754\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers in Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.3389/fmats.2024.1367754","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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.
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.