Preparation of Co₂W Type Hexagonal Ferrite Used in the Load Side of Isolator

Abstract:

The BaCo₂Fe₁₆O₂₇ ferrite particles have been prepared by sol-gel combustion technique. The products have been characterized by TG/SDTA, XRD, SEM and LPSA. The Microwave absorbing composite used in the load side of isolator with BaCo_2-xZn_xFe₁₆O27 (x=0.0, 0.6, 1.0, 1.4, 2.0) as absorber have been prepared. The thermal degradation temperature of this kind of absorbing materials is 350 °C. When the average density is 2.62 g/cm³, the breakdown voltage is 1.4kV/mm. In the frequency range of 2 GHz-16 GHz, the absorption effects of BaZn_xCo_2-xFe₁₆O27 (x=0.6, 1.4) are better than that of the single Co₂-W or Zn₂-W. In the frequency range of 9 GHz-16 GHz, the absorption loss of x=0.6 is better than others, which is in the range of 9.7~15.0 dB.

• Periodical: Materials Science Forum (Volume 687)
• Pages: 151-157
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.687.151
• Online since: June 2011
• Authors: Jian Gong, Guang Liang Xu, Yang Xing Li, Cheng Min Peng
• Keywords: Co₂W Type Hexagonal Ferrite, Isolator, Microwave Absorbing Material

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