TY - JOUR
T1 - High-Q Li2Mg2(MoO4)3 dielectrics for LTCC applications at microwave frequencies
AU - Huang, Cheng Liang
AU - Tsai, Cho Cheng
AU - Tsai, Meng Hung
AU - Huang, Wen Chiao
N1 - Funding Information:
This work was financially supported by the Ministry of Science and Technology of Taiwan under grant MOST 105-2221-E-006-055-MY3.
Publisher Copyright:
© 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The Korean Ceramic Society and The Ceramic Society of Japan.
PY - 2020/4/2
Y1 - 2020/4/2
N2 - Li2Mg2(MoO4)3 dielectric was prepared via the conventional solid-state method, and its dielectric properties were investigated in the microwave frequency region. The XRD patterns of the sintered samples revealed single-phase formation with an orthorhombic structure and a space group belonging to Pnma(62). Lattice parameters, bond length, and Raman spectra of the ceramics were also investigated. The dielectric properties exhibited significant dependence on the sintering conditions. The (Formula presented.) values (resonant frequency temperature coefficient) remained in a range from–60 to–69 ppm/°C for all specimens because the changes in the unit cell volume were small. Excellent microwave dielectric properties (εr ~ 9.5, Q × f ~ 80,000 GHz and τf ~–69 ppm/°C) can be obtained for Li2Mg2(MoO4)3 ceramics sintered at 880°C for 4 h. This constitutes a very promising material for LTCC applications.
AB - Li2Mg2(MoO4)3 dielectric was prepared via the conventional solid-state method, and its dielectric properties were investigated in the microwave frequency region. The XRD patterns of the sintered samples revealed single-phase formation with an orthorhombic structure and a space group belonging to Pnma(62). Lattice parameters, bond length, and Raman spectra of the ceramics were also investigated. The dielectric properties exhibited significant dependence on the sintering conditions. The (Formula presented.) values (resonant frequency temperature coefficient) remained in a range from–60 to–69 ppm/°C for all specimens because the changes in the unit cell volume were small. Excellent microwave dielectric properties (εr ~ 9.5, Q × f ~ 80,000 GHz and τf ~–69 ppm/°C) can be obtained for Li2Mg2(MoO4)3 ceramics sintered at 880°C for 4 h. This constitutes a very promising material for LTCC applications.
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U2 - 10.1080/21870764.2020.1749374
DO - 10.1080/21870764.2020.1749374
M3 - Article
AN - SCOPUS:85084253666
SN - 2187-0764
VL - 8
SP - 430
EP - 436
JO - Journal of Asian Ceramic Societies
JF - Journal of Asian Ceramic Societies
IS - 2
ER -