Electromagnetic and Microwave Absorption Properties of the Carbonyl Iron/Tic Hybrid Powders in the X Band

The electromagnetic and microwave absorption properties of the carbonyl iron/TiC hybrid powders are studied in the X band. A favorable microwave absorption property can be obtained by changing the ratio of carbonyl iron (CI) and TiC. When the TiC content was 25%, the hybrid powders have the optimum microwave absorption property. The bandwidth below -20 dB can be obtained in 9.4-10.5 GHz and the minimum reflection loss value was -25.1 dB. The results indicated that the CI/TiC hybrid powders with appropriate ratio are favorable for application in the X band as microwave absorption absorbent owing to integrating the dielectric absorbent and magnetic absorbent.