The electromagnetic wave absorbing characteristics of MnZn ferrite-TPU composite materials

Cheng Hsiung Peng*, Hong Wen Wang, Yuan Tai Lai, San-Yuan Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The complex permeability and permittivity (μr *andεr*) were investigated for MnZn ferrite-TPU (thermal-plastic polyurethane) composite with ferrite weight percentage varying from 66.7%-88.9%. Fine ferrite powders doped with Mg, Co, and Cu prepared by the citrate gel route were used as fillers. The effective complex permeability and permittivity specta in composites with various ferrite weight percentage were calculated using the Bruggeman effective medium theory. It was found that the dopant content and ferrite/TPU ratio influences the microwave-absorbing characteristics. The results show that the absorbers with (Mg, Co, Cu) doped ferrite have excellent electromagnetic absorption. The reflection loss more than 20dB at the frequencies below 3 GHz can be achieved by controlling the ferrite content and doped elements in the ferrite-TPU composites.

Original languageEnglish
Title of host publicationCross-Disciplinary Applied Research in Materials Science and Technology - Proceedings of the 1st International Meeting on Applied Physics, (APHYS-2003)
Pages155-160
Number of pages6
DOIs
StatePublished - 1 Dec 2005
Event1st International Meeting on Applied Physics, APHYS-2003 - Badajoz, Spain
Duration: 13 Oct 200318 Oct 2003

Publication series

NameMaterials Science Forum
Volume480-481
ISSN (Print)0255-5476

Conference

Conference1st International Meeting on Applied Physics, APHYS-2003
CountrySpain
CityBadajoz
Period13/10/0318/10/03

Keywords

  • Composites
  • Electromagnetic-absorbing
  • MnZn ferrite
  • Permeability
  • Permittivity
  • Reflection loss

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  • Cite this

    Peng, C. H., Wang, H. W., Lai, Y. T., & Chen, S-Y. (2005). The electromagnetic wave absorbing characteristics of MnZn ferrite-TPU composite materials. In Cross-Disciplinary Applied Research in Materials Science and Technology - Proceedings of the 1st International Meeting on Applied Physics, (APHYS-2003) (pp. 155-160). (Materials Science Forum; Vol. 480-481). https://doi.org/10.4028/www.scientific.net/MSF.480-481.155