Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
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THE ABSORPTION PROPERTIES OF Cu-Zn FERRITE/RUBBER COMPOSITE MICROWAVE ABSORBER WITH PZT ADDITIVE

  • Shin, Kwang-Ho (Department of Electrical Engineering, Dong-A University) ;
  • Geon, Sa-Gong (Department of Electrical Engineering, Dong-A University)
  • Published : 1995.10.01
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Abstract

The absorption properties of Cu-Zn ferrite/rubber composite microwave absorbers with PZT(Lead Zirconate Titanate) additive were evaluated. The composite specimens have prepared by molding and curing the mixture of matrix rubber and Cu-Zn ferrite powders which are synthesized by the coprecipitation method using Fe Cl/sub 3/ .center dot. 6H/sub 2/O, CuCl/sub 2/ .center dot. 2H/sub 2/O and Zn Cl/sub 2/ as a starting raw materials. PZT is used as another filler particles to adjust the material constants of Cu-Zn ferrite/rubber composite specimens. We have found that the material constants of specimens could be controlled by various PZT mixing ratio. On the Cu-Zn ferrite/rubber composite specimens with PZT 10[wt%] additive, the reflection losses were larger than 30[dB] in the frequency range from 2.72 to 4.4[GHz]' by adjusing the thickness.

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References

  1. IEEE Trans. v.21 no.4 Electromagnetic Wave Absorbers and Anechoic Chambers through the Years W.H.Emerson
  2. Electric Measurement The Ferrite Microwave Absorber and its Aplication K.Yokoyama;K.Ishino
  3. UDC v.52-B no.4 The Characteristics of Rubber-Ferrite Absorbing Wall Y.Naito;K.Suetake;E.Fujiwara;M.Sato
  4. Polymer v.39 no.10 Ferrite Microwave Absorber K.Ishino;Y.Hashimoto
  5. Korea Inst. of Elect. Engr. Mtg. The Effects of Oxidation Conditions on the Magnetic Properties of Cu-Zn Ferrite Powders K.H.Shin;G.Sa-Gong
  6. KIEE Trans. v.43 no.8 The effect of Additives in the Ferrite/Rubber Composites Microwave Absorber over S-band Frequencies H.G.Kim;K.H.Shin;G.Sa-Gong
  7. KIEE Trans. v.42 no.11 Electrical Properties of Prepoled Flexible 1-3 Ceramic/Polymer Composites Dependent on PZT Volume Fraction H.I.Choi;G.Sa-Gong
  8. ASTM v.2-A Engineering Dielectrics R.B.artnikas;R.M.Eichhorn
  9. JIEE The Phenomenon of Dielectric Material K.Tasaishi(et al.)
  10. Physics of Magnetism S.Chikazumi