| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a Mn-Zn-based ferrite sintered compact ensured to afford low electric power loss over high frequency band through effectively adding Ti<+4> ion to a Mn-Zn-based ferrite core to raise its resistivity. SOLUTION: This method for producing a Mn-Zn-based ferrite sintered compact comprises the following three stages: a mixture of 51-55 mol.% Fe2 O3 , 32-40 mol.% of one kind of MnO, MnO2 , Mn3 O4 and MnCO3 and 6-14 mol.% ZnO is incorporated with 0.01-5.0 wt.% of titanium iron oxide or titanium manganese oxide rather than TiO2 having been used conventionally followed by wet mixing and then drying, the resulting mixture is calcinated at 800-1,100 deg.C, and the resulting product thus calcinated is ground, molded, and then sintered at 1,100-1,250 deg.C. |
