Chemical bond characteristics and microwave dielectric properties of high-Q x f Li3+xMgNbO5Fx (0 ≤ x ≤ 1.25) ceramics for LTCC applications

被引：0

作者：

Xu, Shiheng ^{[1
]}

Gan, Lin ^{[1
]}

Jiang, Juan ^{[1
]}

Wang, Jinzhao ^{[1
]}

Zhang, Tianjin ^{[1
]}

机构：

[1] Hubei Univ, Collaborat Innovat Ctr Adv Organ Chem Mat Coconstr, Sch Mat Sci & Engn, Minist Educ,Key Lab Green Preparat & Applicat Func, Wuhan 430062, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2023年 / 34卷 / 35期

基金：

中国国家自然科学基金;

关键词：

Chemical bonds - Dielectric properties - Lithium compounds - Magnesium compounds - Microelectronics - Microwave devices - Solid state reactions - Temperature;

D O I：

10.1007/s10854-023-11627-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel series of oxyfluoride rock salt-structured Li3+xMgNbO5Fx (0 <= x <= 1.25) ceramic specimens were prepared via a solid-state reaction route. The phase composition, microstructures, and microwave dielectric properties of the samples were investigated. The chemical bond theory was employed to reveal the composition dependence of the microwave dielectric properties of the Li3+xMgNbO5Fx samples. The optimal microwave dielectric properties of epsilon(r) = 16.1, Q x f = 79200 GHz, tau(f)=-40.8 ppm/degrees C were obtained in the specimen with x = 0.75 when sintered at 900degree celsius. Additionally, the Li3.75MgNbO5F0.75 ceramics showed excellent chemical compatibility with Ag electrodes, which suggests that the present samples are promising candidate materials for low-temperature co-fired ceramic (LTCC) applications.

引用

页数：11

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