METHOD FOR MANUFACTURING Y-TYPE FERRITE AND Y-TYPE FERRITE CAPABLE OF SECURING THE HIGH MAGNETIC PERMEABILITY TO THE Y-TYPE FERRITE AT HIGH FREQUENCY BAND

摘要

PURPOSE: A method for manufacturing Y-type ferrite and Y-type ferrite are provided to substitute some cobalt ions contained in the Y-type ferrite with zinc ions and copper ions.;CONSTITUTION: A method for manufacturing Y-type ferrite includes the following: A starting material including a barium compound, a cobalt compound, an iron compound, and a copper compound is prepared. The starting material is dissolved and mixed(S120). The mixed solution of the starting material is co-precipitated(S130). Washing, filtering, and drying processes are implemented with respect to the co-precipitated material(S140). One or more thermal treatment processes are implemented with respect to the dried material(S150, S160). The composition of the Y-type ferrite is represented by Ba_2Co_2-xCu_xFe_12O_22. The molar ratio of the barium compound, the cobalt compound, the iron compound, and the copper compound is 2:2-x:x:12, and the range of x is between 0.6 and 1.2.;COPYRIGHT KIPO 2011