Microwave dielectric properties of a temperature-stable and ultra-low sintering Li3AlMo3O12/Li0.5Bi0.5MoO4 composite ceramics for ULTCC application

Chun Tong; Xinlei Shen; Chang Feng; Xia Feng; Haikui Zhu; Lixi Wang

doi:10.1016/j.jallcom.2024.176568

Microwave dielectric properties of a temperature-stable and ultra-low sintering Li₃AlMo₃O₁₂/Li_0.5Bi_0.5MoO₄ composite ceramics for ULTCC application

Chun Tong, Xinlei Shen, Chang Feng, Xia Feng, Haikui Zhu, Lixi Wang

College of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Temperature-stable ULTCC composite (1-x)Li₃AlMo₃O₁₂-xLi_0.5Bi_0.5MoO₄ ceramics were prepared by solid-state reaction method. X-ray and EDS results showed that Li₃AlMo₃O₁₂ phase and Li_0.5Bi_0.5MoO₄ phase exist independently, and no other phase is generated. Due to the low sintering temperature of both two phases, the composite ceramics can obtain high density at 560 ℃. Microwave dielectric properties mainly depend on the ceramic Li_0.5Bi_0.5MoO₄ content x, the addition of Li_0.5Bi_0.5MoO₄ effectively increases the τ_f of Li₃AlMo₃O₁₂ from −65.05 ppm/℃ to 4.96 ppm/℃, but caused the dielectric loss increase. When x=0.45 and sintered at 560 ℃, microwave dielectric properties of 0.55Li₃AlMo₃O₁₂-0.45Li_0.5Bi_0.5MoO₄ ceramics with close zero τ_f: ε_r = 15.32, Q×f = 13,158 GHz, τ_f = 4.96 ppm/℃.

Original language	English
Article number	176568
Journal	Journal of Alloys and Compounds
Volume	1008
DOIs	https://doi.org/10.1016/j.jallcom.2024.176568
State	Published - 15 Dec 2024

Keywords

Composite ceramic
Microwave dielectric ceramics
Molybdate
Temperature-stable
ULTCC

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10.1016/j.jallcom.2024.176568

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@article{ef833b255eb44783b732032cdc5ad37a,

title = "Microwave dielectric properties of a temperature-stable and ultra-low sintering Li3AlMo3O12/Li0.5Bi0.5MoO4 composite ceramics for ULTCC application",

abstract = "Temperature-stable ULTCC composite (1-x)Li3AlMo3O12-xLi0.5Bi0.5MoO4 ceramics were prepared by solid-state reaction method. X-ray and EDS results showed that Li3AlMo3O12 phase and Li0.5Bi0.5MoO4 phase exist independently, and no other phase is generated. Due to the low sintering temperature of both two phases, the composite ceramics can obtain high density at 560 ℃. Microwave dielectric properties mainly depend on the ceramic Li0.5Bi0.5MoO4 content x, the addition of Li0.5Bi0.5MoO4 effectively increases the τf of Li3AlMo3O12 from −65.05 ppm/℃ to 4.96 ppm/℃, but caused the dielectric loss increase. When x=0.45 and sintered at 560 ℃, microwave dielectric properties of 0.55Li3AlMo3O12-0.45Li0.5Bi0.5MoO4 ceramics with close zero τf: εr = 15.32, Q×f = 13,158 GHz, τf = 4.96 ppm/℃.",

keywords = "Composite ceramic, Microwave dielectric ceramics, Molybdate, Temperature-stable, ULTCC",

author = "Chun Tong and Xinlei Shen and Chang Feng and Xia Feng and Haikui Zhu and Lixi Wang",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2024",

month = dec,

day = "15",

doi = "10.1016/j.jallcom.2024.176568",

language = "英语",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Microwave dielectric properties of a temperature-stable and ultra-low sintering Li3AlMo3O12/Li0.5Bi0.5MoO4 composite ceramics for ULTCC application

AU - Tong, Chun

AU - Shen, Xinlei

AU - Feng, Chang

AU - Feng, Xia

AU - Zhu, Haikui

AU - Wang, Lixi

PY - 2024/12/15

Y1 - 2024/12/15

N2 - Temperature-stable ULTCC composite (1-x)Li3AlMo3O12-xLi0.5Bi0.5MoO4 ceramics were prepared by solid-state reaction method. X-ray and EDS results showed that Li3AlMo3O12 phase and Li0.5Bi0.5MoO4 phase exist independently, and no other phase is generated. Due to the low sintering temperature of both two phases, the composite ceramics can obtain high density at 560 ℃. Microwave dielectric properties mainly depend on the ceramic Li0.5Bi0.5MoO4 content x, the addition of Li0.5Bi0.5MoO4 effectively increases the τf of Li3AlMo3O12 from −65.05 ppm/℃ to 4.96 ppm/℃, but caused the dielectric loss increase. When x=0.45 and sintered at 560 ℃, microwave dielectric properties of 0.55Li3AlMo3O12-0.45Li0.5Bi0.5MoO4 ceramics with close zero τf: εr = 15.32, Q×f = 13,158 GHz, τf = 4.96 ppm/℃.

AB - Temperature-stable ULTCC composite (1-x)Li3AlMo3O12-xLi0.5Bi0.5MoO4 ceramics were prepared by solid-state reaction method. X-ray and EDS results showed that Li3AlMo3O12 phase and Li0.5Bi0.5MoO4 phase exist independently, and no other phase is generated. Due to the low sintering temperature of both two phases, the composite ceramics can obtain high density at 560 ℃. Microwave dielectric properties mainly depend on the ceramic Li0.5Bi0.5MoO4 content x, the addition of Li0.5Bi0.5MoO4 effectively increases the τf of Li3AlMo3O12 from −65.05 ppm/℃ to 4.96 ppm/℃, but caused the dielectric loss increase. When x=0.45 and sintered at 560 ℃, microwave dielectric properties of 0.55Li3AlMo3O12-0.45Li0.5Bi0.5MoO4 ceramics with close zero τf: εr = 15.32, Q×f = 13,158 GHz, τf = 4.96 ppm/℃.

KW - Composite ceramic

KW - Microwave dielectric ceramics

KW - Molybdate

KW - Temperature-stable

KW - ULTCC

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U2 - 10.1016/j.jallcom.2024.176568

DO - 10.1016/j.jallcom.2024.176568

M3 - 文章

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SN - 0925-8388

VL - 1008

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 176568

ER -

Microwave dielectric properties of a temperature-stable and ultra-low sintering Li₃AlMo₃O₁₂/Li_0.5Bi_0.5MoO₄ composite ceramics for ULTCC application

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