Microwave dielectric properties of MnTeMoO6 ceramic and lowering its dielectric loss by using Mg-substitution in the A-site

Yi Lun Hsieh, Tsung Hsien Hsu, Cheng Liang Huang

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

The MnTeMoO6 (MTMO) ceramics were prepared by the conventional solid-state ceramic method. It exhibits an orthorhombic structure, belongs to the space group P21212(18) and possesses a favorable combination of dielectric properties (εr =12.3, Q×f =36,000 GHz, and τf =–63 ppm/°C) at microwave frequency. The effects of A-site Mg-substitution on the sintering behavior, phase evolution, and microwave dielectric properties of MTMO ceramics were also investigated. XRD analysis showed that all samples reveal MTMO phase indicating the formation of solid solution in the experimental range. Upon substituting 5 mol. % Mg in the A-site, the relative density of the specimen can be raised from 95.1 % to 97.3 % along with the optimized properties of εr = 13, Q×f = 56,000 GHz and τf = –58.2 ppm/°C, which reveals a 55 % enhancement in the Q×f of the MTMO ceramic. It also renders an excellent chemical compatibility with aluminum metal electrode suggesting that it is a potential candidate for ULTCC applications.

原文English
文章編號169636
期刊Journal of Alloys and Compounds
947
DOIs
出版狀態Published - 2023 6月 25

All Science Journal Classification (ASJC) codes

  • 材料力學
  • 機械工業
  • 金屬和合金
  • 材料化學

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