| abstract |
The invention relates to the technical field of electromagnetic shielding, and discloses a Fe3O4 - FeCo - carbon nanofiber ternary composite wave absorbing material. Nanoporous Fe3O4 hollow microspheres have a unique porous hollow structure. The modification of the alloy forms a shell-core structure, which has the characteristics of larger specific surface area, lower density, lighter weight, and better dielectric loss and magnetic loss performance. Fe 3 O is obtained by electrospinning, pre-oxidation and high-temperature carbonization. 4 -FeCo - carbon nanofiber ternary composite material, the coating of hollow carbon nanofibers reduces the agglomeration and aggregation of FeCo nanoalloy microspheres modified Fe3O4 , and the introduction of carbon nanofibers can significantly improve the ternary composites. The impedance matching performance and attenuation matching performance of the absorbing material make the ternary composite absorbing material have higher reflection loss and wider effective absorption bandwidth. and absorbing properties. |