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

被引：2
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
收藏
页码：231 / 238
页数：8
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