Low temperature sintering mechanism for Li2Mg3SnO6 microwave dielectric ceramics

被引：24

作者：

Fu, Zhifen ^{[1
]}

Li, Can ^{[1
]}

Ma, Jianli ^{[1
]}

Wu, Yilong ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Sch Mech & Optoelect Phys, Huainan 232001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2019年 / 250卷

关键词：

Dielectric properties; Microstructure; Li2Mg3SnO6; Ceramics; EVOLUTION; SYSTEMS; LIF;

D O I：

10.1016/j.mseb.2019.114438

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-fired Li2Mg3SnO6 ceramics were fabricated via the conventional solid-state reaction route, and the effects of LiF-doping on their sintering mechanism and microwave dielectric properties were investigated. Sintering temperature of Li2Mg3SnO6 ceramics were effectively reduced to 900 degrees C due to the substitution of F- for O-2, which could cause weakening of oxygen bond strength induced reduced the intrinsic sintering temperature and facilitates the diffusion process. Low-fired ceramics inhibited volatilization of Li and improved relative density. Well-densified Li2Mg3SnO6-4 wt% LiF ceramics were obtained with optimum microwave dielectric properties of epsilon(r) = 12.3, Q x f = 96280 GHz and tau(f) = -40.7 ppm/degrees C at 900 degrees C. Such samples were compatible with Ag electrodes and suitable for LTCC applications.

引用

页数：5

共 26 条

[1] New high Q microwave dielectric ceramics with rock salt structures: (1-x)Li2TiO3 + xMgO system (0 ≤ x ≤ 0.5) [J].

Bian, J. J. ;

Dong, Y. F. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (02) :325-330

[2] THEORY OF THE DIELECTRIC CONSTANTS OF ALKALI HALIDE CRYSTALS [J].

DICK, BG ;

OVERHAUSER, AW .

PHYSICAL REVIEW, 1958, 112 (01) :90-103

[3] Structure and microwave dielectric properties of the Li2/3(1-x)Sn1/3(1-x)MgxO systems (x=0-4/7) [J].

Fang, Zixuan ;

Tang, Bin ;

Yuan, Ying ;

Zhang, Xing ;

Zhang, Shuren .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2018, 101 (01) :252-264

[4] Phase evolution, structure and microwave dielectric properties of Li2+xMg3SnO6 (x=0.00-0.12) ceramics [J].

Fang, Zixuan ;

Tang, Bin ;

Si, Feng ;

Li, Enzhu ;

Yang, Hongyu ;

Zhang, Shuren .

CERAMICS INTERNATIONAL, 2017, 43 (16) :13645-13652

[5] Microwave dielectric properties of low-fired Li2SnO3 ceramics co-doped with MgO-LiF [J].

Fu, Zhifen ;

Liu, Peng ;

Ma, Jianli ;

Guo, Baochun ;

Chen, Xiaoming ;

Zhang, Huaiwu .

MATERIALS RESEARCH BULLETIN, 2016, 77 :78-83

[6] Novel series of ultra-low loss microwave dielectric ceramics: Li2Mg3BO6 (B = Ti, Sn, Zr) [J].

Fu, Zhifen ;

Liu, Peng ;

Ma, Jianli ;

Zhao, Xiaogang ;

Zhang, Huaiwu .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (03) :625-629

[7]

Fuoss R.M., 1954, DIELECTRIC MAT APPL

[8] Synthesis and Microwave Dielectric Properties of Novel Temperature Stable High Q, Li2ATi3O8 (A=Mg, Zn) Ceramics [J].

George, Sumesh ;

Sebastian, Mailadil Thomas .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (08) :2164-2166

[9] Constrained sintering of dielectric and ferrite LTCC tape composites [J].

Hagymási, M ;

Roosen, A ;

Karmazin, R ;

Dernovsek, O ;

Haas, W .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (12) :2061-2064

[10] Microwave dielectric properties of Li2TiO3 ceramics doped with LiF for LTCC applications [J].

Hao, Yi-Zhou ;

Yang, Hui ;

Chen, Guo-Hua ;

Zhang, Qi-Long .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 552 :173-179

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