Synthesis,Characterization and Electromagnetic Studies on Nanocrystalline Co_0.5Zn_0.5Fe₂O₄ Synthesized by Polyacrylamide Gel

Ruiting MA~(1)+) Yanwen TIAN~(2)) Haitao ZHAO~(1)) Gang ZHANG~(1)) Hui ZHAO~(1)) 1)School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110168,China 2)School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

摘 要：<正>Nanocrystalline Co_0.5Zn_0.5Fe₂O₄ ferrite was synthesized by polyacrylamide gel method.The electromagnetic and microwave absorption properties of the ferrite were investigated.The results indicated that calcining temperature of the ferrite had a significant influence on the effective properties of the ferrite.When the calcining temperature was 500,600 and 700℃,the average size of particles was 10,30 and 80 nm,respectively. The dielectric loss（ε″）and magnetic loss（u″）of the ferrite was around 0.65 and 0.29 at 8.2 GHz,respectively. Microwave absorption properties of the ferrites were simultaneously influenced due to the strong correlation between reflection loss and electromagnetic parameters of the ferrite.

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