Soft magnetic composites (SMC) with a bionic shell structure and a delicate, regular layered arrangement were prepared via a casting process. The permeability of composite samples was 140 at 5 MHz for plane anisotropy, while that of the spherical-particle-constructed material is only 14. According to classical loss separation results, the layered bulk material without an SiO₂ coating exhibited lower hysteresis loss. In contrast, the layered bulk material coated with SiO₂ showed lower eddy current loss, attributed to the increase in resistivity resulting from the SiO₂ coating. The magnetic loss of the layered bulk materials was 588 kW/m³ at 50 mT and 100 kHz. SMC materials with this structure are anticipated to have strong potential for magnetic cores used in high-efficiency power supplies.

通过铸造工艺制备了具有仿生壳结构和精细、规则分层排列的软磁复合材料 (SMC)。对于平面各向异性，复合材料样品在 5 MHz 下的渗透率为 140，而球形颗粒结构材料的渗透率为 14。根据经典的损耗分离结果，没有 SiO ₂涂层的层状体材料表现出较低的磁滞损耗。相比之下，涂有 SiO ₂的层状体材料显示出较低的涡流损耗，这是由于 SiO ₂涂层导致电阻率增加。层状散装材料的磁损耗为 588 kW/m ³在 50 mT 和 100 kHz。预计具有这种结构的 SMC 材料在用于高效电源的磁芯方面具有强大的潜力。