Self-propagating high-temperature synthesis of MnZn-ferrite powder

Using KClO₃ as inner oxidant, MnZn-ferrite powder was synthesized by a self-propagating high-temperature synthesis (SHS) process in normal air atmosphere. The properties of the powder were investigated by XRD, SEM and VSM. The effects of combustion synthesis parameters were also analyzed. The results show that, with the Fe value k=0.6 and the inner oxidant value m=0.43 the combustion velocity is 1.93 mm ·s^-1, and the highest combustion temperature is 1593 K. The powder possesses good magnetic properties, σ_s=64.44A·m²·kg^-1,σ_r=1.349 A·m²·kg^-1, H_c=0.24 kA·m^-1, and the mean particle diameter is 1.42 μm.