Microwave absorption properties of CeO2 and Zn-modified CeO2 microstructures
Copyright policy )Microwave absorption properties of CeO2 and Zn-modified CeO2 microstructures
Abstract CeO 2 and Zn-modified CeO 2 microstructures have been synthesized by a facile hydrothermal method and their microwave absorption properties have been investigated in detail. Complex permittivity and permeability of CeO 2 and CeZn paraffin composites have been measured over the range of 2–18 GHz. Excellent microwave absorption properties have been obtained for CeO 2 and CeZn microstructures compared with ZnO nanoparticles. Especially, maximum RL increases with increasing the concentration of CeZn microspheres in the composites and minimal RL value is −35 dB with 70 wt.% CeZn microspheres at 2.0 mm thickness. This phenomenon is attributed to both unique structure properties and geometric effect of CeO 2 and CeZn microstructures.
- Northwestern Polytechnical University China (People's Republic of)
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