Sintering Mechanism and Microwave Dielectric Characteristics of Low-Fired Mg4Nb2O9 Ceramics for LTCC Applications

被引：3

作者：

Fu, Zhifen ^{[1
]}

Yang, Zhongyi ^{[1
]}

Ma, Jianli ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Coll Mech & Optoelect Phys, Huainan, Peoples R China

来源：

INTEGRATED FERROELECTRICS | 2021年 / 221卷 / 01期

关键词：

Mg4Nb2O9; sintering mechanism; dielectric characteristics; LTCC; LOW-TEMPERATURE SYNTHESIS; LIF;

D O I：

10.1080/10584587.2021.1965847

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：

The low-fired Mg4Nb2O9 ceramics were fabricated by a solid-state reaction method for developing LTCC applications. By addition LiF as sintering aid, the sintering temperatures of Mg4Nb2O9 ceramics were successfully lowered to 950 degrees C due to the substitution of F- for O2-. The oxygen bond strength could be weakened by the substitution of F- for O2-, which reduced the intrinsic sintering temperature and facilitated the diffusion process. The microwave dielectric properties of e (r) = 12.3, Q x f = 62450 GHz, tau(f) = -57.5 ppm/degrees C were obtained for Mg4Nb2O9-4 wt.% LiF ceramics, which suitable for LTCC applications.

引用

页码：231 / 238

页数：8

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