Abstract
The electromagnetic (EM) characteristics and microwave absorption properties of the Nickel/Ti3SiC2 hybrid powders are studied in 8.2–12.4GHz.With the enhancement of Ti3SiC2 content, the dielectric loss of the hybrid powders increases while the magnetic loss decreases compared with the pure Ni powders. A favorable microwave absorption property can be obtained by changing the Ti3SiC2 content to tailor the EM parameters. The composite with 30wt% Ni and 30wt% Ti3SiC2 powders presents the optimum microwave absorption property. For the composite of 2.2mm thickness, a reflection loss (RL) below −10dB is obtained in the frequency range of 8.2–12GHz with a minimum RL of −41.2dB at the matching frequency 9.7GHz. This study contributes to exploring the absorber with broad absorption bandwidth, low density and thin thickness.
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