Synthesis and characterization of a microwave absorbing material based on magnetoplumbite ferrite and graphite nanosheet

摘要

After pretreated, graphite nanosheet was precipitated by magnetoplumbite ferrite to produce a microwave absorbing material BaFe_(12)O_(19)/NanoG. The structure of the material was characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and transmission electron microscopy. The crystal parameters of BaFe_(12)O_(19) in BaFe_(12)O_(19)/NanoG are as follows: a=0.5895 nm, c=2.3047 nm, c/a=3.9096 nm, and D=87.3 nm. The reflection loss of BaFe_(12)O_(19)/NanoG is between -16 dB and -17 dB; the minimum loss is -17.06 dB at 9.27 GHz.