| Summary: | Flake-shaped FeSiCr (FFSC) material is expected to be a promising microwave absorbent due to its excellent magnetic properties and environmental resistance. By introducing carbon-based materials through suitable coatings, the electromagnetic parameters and energy loss can be tuned to improve the performance of FFSC. A facile solution-blending method was deployed to prepare graphite- and epoxy resin-encapsulated FFSC (FFSC@G/E) powders with a core–shell structure. FFSC@G<sub>2000</sub>/E showed excellent performance in the X band (8–12 GHz), a minimum reflection loss (RL<sub>min</sub>) of −42.77 dB at a thickness of 3 mm and a maximum effective absorption bandwidth (EAB<sub>max</sub>, RL < −10 dB) that reached 4.55 GHz at a thickness of 2.7 mm. This work provides a route for the production of novel high-performance microwave absorbers.
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