METHOD FOR PRODUCING FERRITE

摘要

Disclosed herein is a method for producing a ferrite which can achieve high efficiency even in a high frequency range. The method comprises the steps of: mixing barium nitrate (Ba(NO 3 ) 2 ), cobalt nitrate hexahydrate (Co(NO 3 ) 2 ·6H 2 O) and ferric nitrate nonahydrate (Fe(NO 3 ) 3 ·9H 2 O) at a ratio of 3:2:24 to form a liquid-phase mixture; co-precipitating the mixture with sodium hydroxide (NaOH) so as to be metalized; washing and drying the co-precipitated mixture; heat-treating the co-precipitated mixture; and adding aluminum oxide (Al 2 O 3 ) to the mixture. The method can provide a high-efficiency ferrite having reduced permittivity, permeability, dielectric loss and permeability loss.