TY - JOUR
T1 - Microwave dielectric properties of MnTeMoO6 ceramic and lowering its dielectric loss by using Mg-substitution in the A-site
AU - Hsieh, Yi Lun
AU - Hsu, Tsung Hsien
AU - Huang, Cheng Liang
N1 - Funding Information:
The work was financially sponsored by the National Science and Technology Council of R.O.C (Taiwan) under the projects MOST 110-2221-E-006-032-MY2 and MOST 111-2221-E-006-164-MY2 . The authors would like to thank Ms. Hui-Jung Shih, The Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM (Hitachi SU8000). The authors also gratefully acknowledge the use of D8 Discover equipment belonging to the Instrument Center of National Cheng Kung University.
Funding Information:
The work was financially sponsored by the National Science and Technology Council of R.O.C (Taiwan) under the projects MOST 110-2221-E-006-032-MY2 and MOST 111-2221-E-006-164-MY2. The authors would like to thank Ms. Hui-Jung Shih, The Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM (Hitachi SU8000). The authors also gratefully acknowledge the use of D8 Discover equipment belonging to the Instrument Center of National Cheng Kung University.
Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/6/25
Y1 - 2023/6/25
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jallcom.2023.169636
DO - 10.1016/j.jallcom.2023.169636
M3 - Article
AN - SCOPUS:85150055527
SN - 0925-8388
VL - 947
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 169636
ER -