Structure and microwave dielectric properties of the Li2O-MgO-TiO2 systems

被引：3
作者：
Li, Chang [1 ]
Fu, Zhifen [1 ]
Chen, Chen [1 ]
Cheng, Qing [1 ]
机构：
[1] Anhui Univ Sci & Technol, Sch Mech & Optoelect Phys, Huainan 232001, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2023年 / 34卷 / 06期
关键词：
SINTERING BEHAVIOR; CRYSTAL-STRUCTURE; CERAMICS;
D O I：
10.1007/s10854-022-09790-6
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：
In this paper, Li2O-MgO-TiO2 (1:x:1, x = 1, 2, 3, 4 and 5) ceramic systems were prepared by solid-state reaction sintering. The effects of extra magnesium content on the phase evolution, crystal structure and microwave dielectric characteristics of Li2O-MgO-TiO2 ceramics were systematically investigated. The Li2MgTi3O8, Li2Mg3TiO6, and (Li2TiO3)(10.667) coexisted at x = 1 and 2. When x augmented to 3, the pure Li2Mg3TiO6-like phase was obtained with the increase of magnesium content. All specimens showed porous structure and clear grain boundaries. The microwave dielectric characteristics are extraordinary dependent on chemical component and densification. The Li2O-4MgO-TiO2 ceramics sintered at 1350 degrees C possessed preeminent comprehensive performance of epsilon(r) = 13.95, Q x f = 119,072 GHz and tau(f) = - 40.9 ppm/degrees C.
引用
收藏
页数：7
相关论文
共 30 条
  • [1] Crystal structure, infrared spectra and microwave dielectric properties of ultra low-loss Li2Mg4TiO7 ceramics
    Bi, J. X.
    Li, C. C.
    Zhang, Y. H.
    Xing, C. F.
    Yang, C. H.
    Wu, H. T.
    [J]. MATERIALS LETTERS, 2017, 196 : 128 - 131
  • [2] Sintering behavior, microstructure and microwave dielectric properties of Li2+xTiO3 (0 ≤ x ≤ 0.2)
    Bian, J. J.
    Dong, Y. F.
    [J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2011, 176 (02): : 147 - 151
  • [3] New high Q microwave dielectric ceramics with rock salt structures: (1-x)Li2TiO3 + xMgO system (0 ≤ x ≤ 0.5)
    Bian, J. J.
    Dong, Y. F.
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (02) : 325 - 330
  • [4] ORDER-DISORDER PHENOMENA IN OXIDES WITH ROCK SALT STRUCTURES - SYSTEM LI2TIO3-MGO
    CASTELLANOS, M
    WEST, AR
    [J]. JOURNAL OF MATERIALS SCIENCE, 1979, 14 (02) : 450 - 454
  • [5] Low-firing high permittivity Ca0.6Sm0.8/3TiO3-(Li0.5Nd0.5)TiO3 ceramics with BaCu(B2O5) addition
    Chen, Guo-hua
    Yuan, Chang-lai
    Zhou, Chang-rong
    Yang, Yun
    [J]. CERAMICS INTERNATIONAL, 2013, 39 (08) : 9763 - 9766
  • [6] Microwave dielectric properties and its compatibility with silver electrode of Li2MgTi3O8 ceramics
    Chen, Xiuli
    Zhou, Huanfu
    Fang, Liang
    Liu, Xiaobin
    Wang, Yiliang
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (19) : 5829 - 5832
  • [7] Fabrication of Wideband Low-Profile Dielectric Patch Antennas from Temperature Stable 0.65 CaTiO3-0.35 LaAlO3 Microwave Dielectric Ceramic
    Du, Chao
    Zhou, Di
    Li, Rui-Tao
    Chen, He-Tuo
    Zhou, Guo-Hong
    Tang, Bin
    Darwish, Moustafa Adel
    Xia, Song
    Xu, Zhuo
    [J]. ADVANCED ELECTRONIC MATERIALS, 2022, 8 (09)
  • [8] Dielectric resonator antenna with Y3Al5O12 transparent dielectric ceramics for 5G millimeter-wave applications
    Du, Chao
    Fu, Mao-Sen
    Zhou, Di
    Guo, Huan-Huan
    Chen, He-Tuo
    Zhang, Jian
    Wang, Jun-Ping
    Wang, Shao-Fei
    Liu, Hai-Wen
    Liu, Wen-Feng
    Li, Long
    Xu, Zhuo
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2021, 104 (09) : 4659 - 4668
  • [9] Structure and microwave dielectric properties of the Li2/3(1-x)Sn1/3(1-x)MgxO systems (x=0-4/7)
    Fang, Zixuan
    Tang, Bin
    Yuan, Ying
    Zhang, Xing
    Zhang, Shuren
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2018, 101 (01) : 252 - 264
  • [10] Low temperature sintering mechanism for Li2Mg3SnO6 microwave dielectric ceramics
    Fu, Zhifen
    Li, Can
    Ma, Jianli
    Wu, Yilong
    [J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2019, 250
123