Low-temperature sintering and microwave dielectric properties of ZnGa2–xO4–1.5x ceramics with added B2O3

Xia, Junjia; Ma, Xing-Hua; Zhang, Zhenlu; Nahm, Sahn; Zhang, Shuling; Ma, Xingyi; Guo, Feng

doi:10.1007/s10854-023-11331-8

J Mater Sci: Mater Electron

2023

DOI: 10.1007/s10854-023-11331-8

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Low-temperature sintering and microwave dielectric properties of ZnGa2–xO4–1.5x ceramics with added B2O3

Junjia Xia,

Xing-Hua Ma,

Zhenlu Zhang

et al.

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2024

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Cited by 2 publications

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Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic

Xiong,

Zhu,

Zhu

et al. 2024

ACS Appl. Mater. Interfaces

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Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic

Xiong,

Zhu,

Zhu

et al. 2024

ACS Appl. Mater. Interfaces

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Low-Temperature Sintering and Microwave Dielectric Properties of CuxZn1−xTi0.2Zr0.8Nb2O8 Ceramics with the Aid of LiF

Ma,

Qu,

et al. 2024

Materials

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M2+N4+Nb2O8-type ceramics (where M = Mg, Ca, Mn, Co, Ni, Zn and N = Ti, Zr) are essential for satellite communication and mobile base stations due to their medium relative permittivity (εr) and high quality factor (Q × f). Although ZnTi0.2Zr0.8Nb2O8 ceramic exhibits impressive microwave dielectric properties, including an εr of 29.75, a Q × f of 107,303 GHz, and a τf of −24.41 ppm/°C, its sintering temperature of 1150 °C remains a significant barrier for integration into low-temperature co-fired ceramic (LTCC) technologies. To overcome this limitation, a strategy involving the partial substitution of Zn2+ with Cu2+ and the addition of LiF as a sintering aid was devised for ZnTi0.2Zr0.8Nb2O8. The dual impact of Cu2+ partial substitution and LiF as a sintering enhancer facilitated the successful sintering of Cu0.3Zn0.7Ti0.2Zr0.8Nb2O8 ceramics at a reduced temperature of 950 °C using the conventional solid-state reaction method. These ceramics exhibited excellent microwave dielectric properties. Notably, Cu0.3Zn0.7Ti0.2Zr0.8Nb2O8 ceramic with 40 mol% LiF addition demonstrated optimal microwave dielectric properties without any reaction with a silver electrode at a sintering temperature of 950 °C, yielding εr = 32, Q × f = 45,543 GHz, and τf = −43.5 ppm/°C.

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Low-temperature sintering and microwave dielectric properties of ZnGa2–xO4–1.5x ceramics with added B2O3

Cited by 2 publications

References 33 publications

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic

Low-Temperature Sintering and Microwave Dielectric Properties of CuxZn1−xTi0.2Zr0.8Nb2O8 Ceramics with the Aid of LiF

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Low-temperature sintering and microwave dielectric properties of ZnGa2–xO4–1.5x ceramics with added B2O3

Cited by 2 publications

References 33 publications

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi2O6-Based Ceramic

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi2O6-Based Ceramic

Low-Temperature Sintering and Microwave Dielectric Properties of CuxZn1−xTi0.2Zr0.8Nb2O8 Ceramics with the Aid of LiF

Contact Info

Product

Resources

About

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic

Design and Fabrication of a Patch Antenna for 5G Wireless Communications from a Low-Permittivity LiAlSi₂O₆-Based Ceramic