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
  • [21] Dielectric properties of B2O3 doped Sm(Co1/2Ti1/2)O3 ceramics at microwave frequency
    Soong, Hong-Tie
    Hsu, Cheng-Hsing
    Huang, Cheng-Liang
    Kuo, Ming-Ta
    JOURNAL OF MATERIALS SCIENCE, 2007, 42 (07) : 2393 - 2398
  • [22] New dielectric material system of Nd(Mg1/2Ti1/2)O3-CaTiO3 with V2O5 addition for microwave applications
    Huang, Cheng-Liang
    Lin, Shih-Hung
    Chen, Yuan-Bin
    JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 489 (02) : 719 - 721
  • [23] Dielectric properties of B2O3 doped Sm(Co1/2Ti1/2)O3 ceramics at microwave frequency
    Hong-Tie Soong
    Cheng-Hsing Hsu
    Cheng-Liang Huang
    Ming-Ta Kuo
    Journal of Materials Science, 2007, 42 : 2393 - 2398
  • [24] Dielectric properties of La-substituted Pb0.5Ca0.5[(Mg1/3Nb2/3)0.5Ti0.5]O3 ceramics
    X. J. Lu
    X. M. Chen
    Journal of Materials Research, 2001, 16 : 2053 - 2056
  • [25] Dielectric properties of La-substituted Pb0.5Ca0.5[(Mg1/3Nb2/3)0.5Ti0.5]O3 ceramics
    Lu, XJ
    Chen, XM
    JOURNAL OF MATERIALS RESEARCH, 2001, 16 (07) : 2053 - 2056
  • [26] Structure and dielectric behavior of the (1-x)La(Mg1/2Ti1/2)O3-xBa(Mg1/2W1/2 )O3 microwave ceramics
    Salak, A. N.
    Khalyavin, D. D.
    Senos, A. M. R.
    Mantas, P. Q.
    Ferreira, V. M.
    FERROELECTRICS, 2006, 333 : 213 - 219
  • [27] Effect of Bi2O3 and B2O3 additives on the sintering temperature, microstructure, and microwave dielectric properties for Sm(Mg0.5Ti0.5)O3 ceramics
    Tay, Kok-Wan
    Fu, Yen-Pei
    Huang, Jen-Fen
    Huang, Hung-Chi
    CERAMICS INTERNATIONAL, 2011, 37 (03) : 1025 - 1031
  • [28] Structure and microwave dielectric properties of La(Mg0.5Ti0.5)O3-CaTiO3 system
    Seabra, MP
    Avdeev, M
    Ferreira, VM
    Pullar, RC
    Alford, NM
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (14) : 2403 - 2408
  • [29] Effect of B2O3 on the microstructure and microwave dielectric properties of Ba(Mg1/3Nb2/3)O3 ceramics
    Peng, Sen
    Yao, Wenxiang
    Zeng, Wenfei
    Xu, Jianming
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2021, 32 (08) : 11084 - 11091
  • [30] 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 : 11084 - 11091
12345