Microwave Characteristics of Ferroxplana-Silicone Rubber Composite

Ferroxplana-Silicone Rubber 복합체의 마이크로파 특성

  • Published : 2004.08.01


In this experimentation, we investigated the characteristics of electromagnetic wave absorption of ferroxplana powder and silicone rubber composite. Ferroxplana was prepared by flux method at low temperature. The crystallization, magnetic properties and particle morphology of the obtained ferroxplana powder were investigated by using XRD, VSM and SEM. The particle size of ferroxplana powder was 2∼4$\mu\textrm{m}$ at the ratio of R=26, The coercivity and saturation magnetization of ferroxplana powder increased slightly with increase of temperature, The magnetic loss was the main factor of electromagnetic wave absorption of ferroxplana powder and silicone rubber composite, The maximum reflection loss of composite was about -l5dB below 4GHz.


  1. R. H. Arendt, J. H. Rosolowski and J. W. Szymaszek 'Lead Zirconate Titanate Ceramics from Molten Salt Solvent Synthesized Powders,' Mat. Res., Bull., Vol. 14, pp. 703-709, 1979 https://doi.org/10.1016/0025-5408(79)90055-2
  2. A. L. Stuijts and H. P. Wijn, 'Crystal Oriented Ferroxplana,' Philips Tech. Rev., Vol. 19, pp. 209-244, 1958
  3. G. H. Jonker, H. P. Wijn and P. B. Braun. 'Ferrox plana Hexagonal Ferromagnetic Iron-Oxide Compounds for Very High Frequencies,' Philips Tech. Rev., Vol. 18, pp. 145-180, 1956
  4. W. Tolkdorf, 'Herstellung Hexagonaler Ferrit-Einkristallemit Y-Strukturaus Schemizfluessiger Loesugn,' J. Crystal Growth., Vol. 18, pp. 57-60, 1973 https://doi.org/10.1016/0022-0248(73)90148-6
  5. 條山誠二, 'Zn2Y 單結晶の育成と 磁氣特性,' 日本 武藏野電氣通信 硏究所 硏究 實用化 報告, Vol. 21, pp. 2071-2072, 1972
  6. T. R. Aucoin, R. O. Savage, and A. Tauber, 'Growth of Hexagonal Crystals by A Modified Pulling Techniques,' J. Appl. Phys., Vol. 37, pp. 2908-2909, 1972 https://doi.org/10.1063/1.1782148
  7. R. O. Savage and A. Tauer, 'Growth and Properties of Single Crystals of Hexagonal Ferrite,' J. Amer. Cer. Soc., Vol. 47, pp. 13-18, 1964 https://doi.org/10.1111/j.1151-2916.1964.tb14633.x
  8. D. Epstein, J. A. Kohn and D. W. Eckart, 'Permanent Magnets and Superconductors, New-Substituted Hexagonal Ferrite,' J. Appl. Phys., Vol. 36, pp. 1171-1172, 1965 https://doi.org/10.1063/1.1714154
  9. J. Smit and H. P. Wijn, 'Ferrites' Philips Tech. Library, Eindhoven-the Netherlands, pp. 177-179, 1959
  10. W. Emerson, 'Electromagnetic Wave Absorbers and Anechoic Chamber Through The Years,' IEEE Trans. Ant. Propa. AP, Vol. 4, pp. 484-490, 1973 https://doi.org/10.1109/TAP.1973.1140517
  11. J. L. Snoeck, 'Dispersion and Absorption in Magnetic Ferrites at Frequencies Above One Megacycle,' J. Appl. Phys., Vol. 14, pp. 207-217, 1948