{"title":"LTC复合添加剂增强了li3mg2nbo6基陶瓷的温度稳定性","authors":"Jingru Xie, Zhifen Fu, Qing Cheng, Chen Chen, Yubin She, Xiangyi Li","doi":"10.1007/s10832-024-00368-8","DOIUrl":null,"url":null,"abstract":"<div><p>The need for microwave dielectric ceramics is steadily growing along with the rapid advancement of wireless communication technology. The preparation of Li<sub>3</sub>Mg<sub>2</sub>NbO<sub>6</sub>-<i>x</i>wt% LiF-TiO<sub>2</sub>-CaF<sub>2</sub> (LMN-LTC, <i>x</i> = 4, 6, 8, 10) ceramics was carried out using the solid-state reaction method. The two-phase structure of the LMN-LTC ceramics was shown by XRD investigation, with the main phase being LMN and the second phase Ca(TiO<sub>3</sub>). Due to the influence of additive LTC, the microwave dielectric properties of the LMN ceramics, especially the temperature stability were successfully regulated to near zero. The LMN ceramic with the addition of 6wt% LTC sintered at 1050 °C for 6 h exhibits outstanding microwave dielectric properties: <i>ε</i><sub><i>r</i></sub> = 13.0, <i>Q</i> × <i>f</i> = 42,000 GHz, <i>τ</i><sub><i>f</i></sub> = 1.76 ppm/°C. It is shown that LMN-6wt% LTC ceramic is promising for wireless communication applications.</p></div>","PeriodicalId":625,"journal":{"name":"Journal of Electroceramics","volume":"53 1","pages":"1 - 9"},"PeriodicalIF":1.7000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced temperature stability of Li3Mg2NbO6-based ceramics by using LTC composite additives\",\"authors\":\"Jingru Xie, Zhifen Fu, Qing Cheng, Chen Chen, Yubin She, Xiangyi Li\",\"doi\":\"10.1007/s10832-024-00368-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The need for microwave dielectric ceramics is steadily growing along with the rapid advancement of wireless communication technology. The preparation of Li<sub>3</sub>Mg<sub>2</sub>NbO<sub>6</sub>-<i>x</i>wt% LiF-TiO<sub>2</sub>-CaF<sub>2</sub> (LMN-LTC, <i>x</i> = 4, 6, 8, 10) ceramics was carried out using the solid-state reaction method. The two-phase structure of the LMN-LTC ceramics was shown by XRD investigation, with the main phase being LMN and the second phase Ca(TiO<sub>3</sub>). Due to the influence of additive LTC, the microwave dielectric properties of the LMN ceramics, especially the temperature stability were successfully regulated to near zero. The LMN ceramic with the addition of 6wt% LTC sintered at 1050 °C for 6 h exhibits outstanding microwave dielectric properties: <i>ε</i><sub><i>r</i></sub> = 13.0, <i>Q</i> × <i>f</i> = 42,000 GHz, <i>τ</i><sub><i>f</i></sub> = 1.76 ppm/°C. It is shown that LMN-6wt% LTC ceramic is promising for wireless communication applications.</p></div>\",\"PeriodicalId\":625,\"journal\":{\"name\":\"Journal of Electroceramics\",\"volume\":\"53 1\",\"pages\":\"1 - 9\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electroceramics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10832-024-00368-8\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroceramics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10832-024-00368-8","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Enhanced temperature stability of Li3Mg2NbO6-based ceramics by using LTC composite additives
The need for microwave dielectric ceramics is steadily growing along with the rapid advancement of wireless communication technology. The preparation of Li3Mg2NbO6-xwt% LiF-TiO2-CaF2 (LMN-LTC, x = 4, 6, 8, 10) ceramics was carried out using the solid-state reaction method. The two-phase structure of the LMN-LTC ceramics was shown by XRD investigation, with the main phase being LMN and the second phase Ca(TiO3). Due to the influence of additive LTC, the microwave dielectric properties of the LMN ceramics, especially the temperature stability were successfully regulated to near zero. The LMN ceramic with the addition of 6wt% LTC sintered at 1050 °C for 6 h exhibits outstanding microwave dielectric properties: εr = 13.0, Q × f = 42,000 GHz, τf = 1.76 ppm/°C. It is shown that LMN-6wt% LTC ceramic is promising for wireless communication applications.
期刊介绍：
While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including:
-insulating to metallic and fast ion conductivity
-piezo-, ferro-, and pyro-electricity
-electro- and nonlinear optical properties
-feromagnetism.
When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice.
The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.
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