TY - JOUR
T1 - Microwave dielectric properties of Li2M2(MoO4)3 (M = Co, Ni) for LTCC applications
AU - Huang, Cheng Liang
AU - Liou, Jie Ning
AU - Tsai, Meng Hung
AU - Huang, Wen Chiao
N1 - Funding Information:
The work was financially sponsored by Ministry of Science and Technology of Taiwan under the projects MOST 105‐2221‐E‐006 ‐055 ‐MY3.
Publisher Copyright:
© 2020 The Authors. International Journal of Ceramic Engineering & Science published by Wiley Periodicals, Inc. on behalf of American Ceramic Society.
PY - 2020/5
Y1 - 2020/5
N2 - Two low-firing Li2M2(MoO4)3 (M = Co, Ni) dielectrics were prepared, and their microwave dielectric properties were investigated. The XRD patterns indicated both samples crystallized in an orthorhombic structure with different space groups. The microstructures, lattice parameters, and Raman spectra of these ceramics were also systematically studied. The microwave dielectric properties were obtained with εr ~ 9.1, Q × f ~ 34 000 GHz and τf ~ −72 ppm/°C for Li2Co2(MoO4)3 at 840°C, εr ~ 9.6, Q × f ~ 28 000 GHz and τf ~ −71 ppm/°C for Li2Ni2(MoO4)3 at 660°C. With 0.05 mol% Zn substitution, excellent microwave dielectric properties (εr ~ 10.9, Q × f ~ 56 000 GHz and τf ~ −62 ppm/°C) can be obtained for Li2(Ni0.95Zn0.05)2(MoO4)3 at 660°C, indicating a very promising dielectric for LTCC or ULTCC applications at high frequencies.
AB - Two low-firing Li2M2(MoO4)3 (M = Co, Ni) dielectrics were prepared, and their microwave dielectric properties were investigated. The XRD patterns indicated both samples crystallized in an orthorhombic structure with different space groups. The microstructures, lattice parameters, and Raman spectra of these ceramics were also systematically studied. The microwave dielectric properties were obtained with εr ~ 9.1, Q × f ~ 34 000 GHz and τf ~ −72 ppm/°C for Li2Co2(MoO4)3 at 840°C, εr ~ 9.6, Q × f ~ 28 000 GHz and τf ~ −71 ppm/°C for Li2Ni2(MoO4)3 at 660°C. With 0.05 mol% Zn substitution, excellent microwave dielectric properties (εr ~ 10.9, Q × f ~ 56 000 GHz and τf ~ −62 ppm/°C) can be obtained for Li2(Ni0.95Zn0.05)2(MoO4)3 at 660°C, indicating a very promising dielectric for LTCC or ULTCC applications at high frequencies.
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U2 - 10.1002/ces2.10044
DO - 10.1002/ces2.10044
M3 - Article
AN - SCOPUS:85104589524
SN - 2578-3270
VL - 2
SP - 130
EP - 139
JO - International Journal of Ceramic Engineering and Science
JF - International Journal of Ceramic Engineering and Science
IS - 3
ER -