Microwave dielectric properties and microstructures of 0.5La(Mg1/2Ti1/2)O3-0.5CaTiO3 ceramics with B2O3 addition

被引：1
|
作者：
Huang, CL [1 ]
Chen, YB [1 ]
Lo, CW [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 9A期
关键词：
ceramics; oxides; X-ray diffraction; dielectric properties;
D O I：
10.1143/JJAP.44.6706
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
La(Mg1/2Ti1/2)O-3-based ceramics are prepared with a conventional solid-state route. With 50mol% CaTiO3 addition, 0.5La(Mg1/2Ti1/2)O-3-0.5CaTiO(3) ceramics with 0.25 wt % B2O3 epsilon(r) value of similar to 42.92-43.38, Q x f values of similar to 24000 (at 7 GHz) and tau(f) values of similar to-8.9 ppm/degrees C. However, the sintering temperature remains above 1400 degrees C. Doping with B2O3 (UP to 1 wt %) can effectively promote the densification and improve the dielectric properties of 0.5La(Mg1/2Ti1/2)O-3-0.5CaTiO(3) ceramics. The effects of a B2O3 additive on the microstructures, phase formation and microwave dielectric properties of La(Mg1/2Ti1/2)O-3-CaTiO3 ceramics system are investigated. The Q x f value of B2O3-doped 0.5La(Mg1/2Ti1/2)O-3-0.5CaTiO(3) ceramics can be improved to 28000 (at 8 GHz) at 1400 degrees C due to the liquid-phase effect. The microwave dielectric properties are found to strongly correlate with the sintering temperature as well as the amount of B2O3 added.
引用
收藏
页码：6706 / 6708
页数：3
相关论文
共 50 条
  • [31] Effect of B2O3 on the microstructure and microwave dielectric properties of Ba(Mg1/3Ta2/3)O3 ceramics
    Kim, Beom-Jong
    Kim, Min-Han
    Nahm, Sahn
    Kim, Hyo-Tae
    Kim, Jong-Hee
    Paik, Jong-Hoo
    Ryu, Hyun
    Lee, Hwack-Joo
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (2-3) : 1065 - 1069
  • [32] New material properties of xLa(Mg1/2Ti1/2)O3-(1-x) (Na0.5Nd0.5)TiO3 ceramics at microwave frequencies
    Chen, Yuan-Bin
    JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 500 (02) : 190 - 194
  • [33] Effect of B2O3 Doping on Microwave Dielectric Properties of (Zn0.5Mg0.5)Nb2O6 Ceramics
    Lin Xuping
    Ma Jingtao
    Chen Qiao
    Zhang Baoqing
    Deng Changsheng
    Zhou Ji
    RARE METAL MATERIALS AND ENGINEERING, 2009, 38 : 395 - 398
  • [34] Microwave dielectric properties of La(1-2x/3)Bax(Mg0.5Sn0.5)O3 ceramics
    Chen, Yih-Chien
    Chen, Kuei-Chien
    Hsu, Wei-Yu
    CRYSTAL RESEARCH AND TECHNOLOGY, 2010, 45 (11) : 1149 - 1153
  • [35] Dielectric properties of B2O3-doped La(Mg0.5Sn0.5)O3 ceramics at microwave frequencies
    Chen, Yih-Chien
    Chang, Yun-Hung
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) : 450 - 453
  • [36] Effect of La2O3 addition on the microwave dielectric properties of Ba(Mg1/3Ta2/3)O3 ceramics
    Sen Peng
    Mengqiang Wu
    Jianming Xu
    Tongcheng Huang
    Gaofeng Luo
    Jiankun Yu
    Jianhua Zhou
    Journal of Materials Science: Materials in Electronics, 2017, 28 : 3349 - 3355
  • [37] Effect of La2O3 addition on the microwave dielectric properties of Ba(Mg1/3Ta2/3)O3 ceramics
    Peng, Sen
    Wu, Mengqiang
    Xu, Jianming
    Huang, Tongcheng
    Luo, Gaofeng
    Yu, Jiankun
    Zhou, Jianhua
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2017, 28 (04) : 3349 - 3355
  • [38] Correction to: Effect of B2O3 on the microstructure and microwave dielectric properties of Ba(Mg1/3Nb2/3)O3 ceramics
    Sen Peng
    Wenxiang Yao
    Wenfei Zeng
    Jianming Xu
    Journal of Materials Science: Materials in Electronics, 2021, 32 : 14121 - 14122
  • [39] La(Mg1/2Ti1/2)O3 -: Based materials for microwave applications
    Seabra, MP
    Salak, AN
    Avdeev, M
    Ferreira, VM
    ADVANCED MATERIALS FORUM II, 2004, 455-456 : 45 - 49
  • [40] Impedance Spectroscopy of Dielectric Properties of Perovskite Ceramics Bi(Mg1/2Ti1/2)O3
    Olekhnovich, N. M.
    Salak, A. N.
    Pushkarev, A. V.
    Radyush, Yu. V.
    Vyshatko, N. P.
    Khalyavin, D. D.
    Ferreira, V. M.
    PHYSICS OF THE SOLID STATE, 2009, 51 (03) : 582 - 588
12345