Journal of Electroceramics

, Volume 43, Issue 1–4, pp 117–122 | Cite as

Ba3Co2Fe24O41/polyimide composites with magnetic and dielectric properties

  • Yatong Cheng
  • Yujuan Niu
  • Feng Xiang
  • Panpan Chang
  • Hong WangEmail author


Ba3Co2Fe24O41(Co2Z)/polyimide(PI) composites were synthesized via in-situ polymerization process, using the micron-sized Co2Z particles prepared by the solid-state reaction. X-ray diffractometer (XRD) pattern shows the existence and purity of the aimed phase. Scanning electron microscope (SEM) images show that the Co2Z particles are uniformly dispersed in the composites. The testing results of dielectric properties of composites reveal that the dielectric constants of the composites increase with the Co2Z content increasing. The frequency-dependent dielectric loss shows that the dielectric loss of samples has the same trend, and that a peak can be observed at about 10 MHz. The saturation magnetization (Ms) of composites depends on the ferrite content, and the Ms. value can reach 8.9 emu/g when the ferrite content is 40 wt% in Co2Z/PI composites. Additionally, the coercivity (Hc) of composites show almost no change as the ferrite content increasing, about 100 Oe. The results indicate that the obtained magnetic dielectric composites are new candidates for antenna applications.


Sintering Composites Dielectric properties Magnetic properties 



This work was supported by the National Natural Science Foundation of China (Nos: 2017YFB0406303) and National Key Research Program of China (Nos: 2017YFB0406303).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Yatong Cheng
    • 1
  • Yujuan Niu
    • 2
  • Feng Xiang
    • 1
  • Panpan Chang
    • 1
  • Hong Wang
    • 1
    • 2
    Email author
  1. 1.State Key Laboratory for Mechanical Behavior of Materials & School of MicroelectronicsXi’an Jiaotong UniversityXi’anChina
  2. 2.Department of Materials Science and EngineeringSouthern University of Science and TechnologyShenzhenChina

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