Abstract
Co2Z type planar hexaferrite doping of Gd3+ 2CoO·3BaO ·xGd2O3·(10.8-x) Fe2O3 is made with common production process of cermet. The paper studies the influence of Gd2O3 doping quantity on microstructure and magnetic performance of Co2Z type planar hexaferrite. The result indicates that Gd3+ doped Co2Z type ferrite still keeps structure of Z type planar hexagonal, when the doping quantity x=0.025, the magnetic performance in ultrahigh frequency will get improved, the initial permeability can grow to 16, and the cut-off frequency will also relatively reduce to the lowest value 1.965GHz.
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