Effects of zinc substitution on the dielectric properties of Ca5Nb4TiO17 microwave ceramics

被引：3
作者：
Li, Chunchun [1 ,2 ]
Wei, Xiaoyong [1 ,2 ]
Yan, Haixue [3 ]
Reece, Michael J. [3 ]
机构：
[1] Xi An Jiao Tong Univ, Minist Educ, Key Lab, Elect Mat Res Lab, Xian 710049, Shaanxi, Peoples R China
[2] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
[3] Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England
来源：
JOURNAL OF ADVANCED DIELECTRICS | 2013年 / 3卷 / 04期
基金：
对外科技合作项目（国际科技项目）;
关键词：
Ceramics; dielectrics; perovskite-like structure; microwave properties;
D O I：
10.1142/S2010135X13200038
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ca5-xZnxNb4TiO17 ceramics with 0 <= x <= 0.4 were prepared through a solid-state reaction method. Effects of zinc substitution on sintering behavior and microwave dielectric properties of Ca5Nb4TiO17 ceramics were investigated. The sintering temperature was significantly lowered from 1480 degrees C for pure Ca5Nb4TiO17 to 1260 degrees C for x = 0.4. The microwave dielectric properties are strongly correlated with the composition. It is worth noting that the temperature coefficient of resonant frequency (T-f) displays a tendency toward positive value, ranging from -126.4 ppm/degrees C to -8.6 ppm/degrees C. A temperature stable microwave ceramic with dielectric constant of 52 and Q x f value of 9937 GHz is achieved at x = 0.4 and is a potential candidate for application as cores in dielectrically loaded antennas.
引用
收藏
页数：5
相关论文
共 50 条
  • [21] Effects of TiO2 addition on microwave dielectric properties of Li2MgSiO4 ceramics
    Rose, Aleena
    Masin, B.
    Sreemoolanadhan, H.
    Ashok, K.
    Vijayakumar, T.
    MATERIALS RESEARCH EXPRESS, 2018, 5 (03):
  • [22] Ca4-xLa2+xTi5-xBxO17 (B = Al, Ga) dielectric ceramics for microwave applications
    Muhammad, Raz
    Khesro, Amir
    MATERIALS SCIENCE-POLAND, 2020, 38 (01) : 73 - 78
  • [23] Parallel preparation and properties investigation on Li2O-Nb2O5-TiO2 microwave dielectric ceramics
    Chang, Jian
    Liu, Zhifu
    Ma, Mingsheng
    Li, Yongxiang
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 37 (13) : 3951 - 3957
  • [24] Structure and Dielectric Properties of ZnO and Nb2O5 Doped BaO-TiO2 System Microwave Ceramics
    Chen Liying
    Wu Shunhua
    Wang Guoqing
    Wang Shuang
    JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2008, 23 (05): : 647 - 651
  • [25] Low temperature sintering and microwave dielectric propertieS of Ca5Ni4(VO4)6 ceramics
    Yao, Guo-guang
    Pei, Cui-jin
    Liu, Peng
    Zhou, Jian-ping
    Zhaug, Huai-wu
    CERAMICS INTERNATIONAL, 2017, 43 : S334 - S338
  • [26] Effects of Ta2O5 on microwave dielectric properties of BiNbO4 ceramics
    Wang, N
    Zhao, MY
    Yin, ZW
    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2003, 99 (1-3): : 238 - 242
  • [27] Synthesis and microwave dielectric properties of Ca substituted SrLa4Ti4.93Zr0.07O17 ceramics
    Manan, Abdul
    Qazi, Ibrahim
    BULLETIN OF MATERIALS SCIENCE, 2014, 37 (03) : 679 - 683
  • [28] Effect of lanthanide ion substitution on RF and microwave dielectric properties of BiNbO4 ceramics
    Butee, Sandeep
    Kulkarni, Ajit R.
    Prakash, Om
    Aiyar, R. P. R. C.
    Sudheendran, K.
    Raju, K. C. James
    JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 492 (1-2) : 351 - 357
  • [29] Microwave dielectric properties and co-firing of BiNbO4 ceramics with CuO substitution
    Zhou, Di
    Wang, Hong
    Yao, Xi
    MATERIALS CHEMISTRY AND PHYSICS, 2007, 104 (2-3) : 397 - 402
  • [30] A5B4O15 (A=Ba, Sr, Mg, Ca, Zn;: B=Nb, Ta) microwave dielectric ceramics
    Jawahar, IN
    Mohanan, P
    Sebastian, MT
    MATERIALS LETTERS, 2003, 57 (24-25) : 4043 - 4048
12345