Microwave absorbing studies of magnetic materials for X-band frequencies

摘要

Magnetic materials, Barium hexaferrite BaFe_12-2x(Co_0.8Ti_0.8Mn_0.4)_xO₁₉(x = 0 and x = 1) have been synthesized by ceramic method and sintered at temperature 1100 °C for 5 hours in the atmosfer ambient. In order to realize a microwave absorber composite, the ferrites powder are mixed with the resin. The structure of the crystal and magnetic properties were performed by using XRD and Permagraph, respectively, whereas the reflection characteristics were investigated by an vector network analyzer. The results confirm that the barium hexaferrite has single phase with hexagonal structure and Co-Ti-Mn change magnetic properties and improve the values of reflection characteristics.