| 摘要 |
[Problem] To provide a sintered ferrite and a ferrite core which are high in resistivity, magnetic permeability, and Curie temperature and a coil component obtained by winding a metal wire on this ferrite core. [Solution] A sintered ferrite which comprises, as the main component, an oxide of Fe, Zn, Ni, and Cu, wherein if the composition of the main component is taken as 100 mol%, the Fe content is 49-50 mol% in terms of Fe2O3, the Zn content is 32-34 mol% in terms of ZnO, the Ni content is 10-12.5 mol% in terms of NiO, and the Cu content is 4-8 mol% in terms of CuO. In an examination by X-ray diffractometry, the sintered ferrite has an I2/I1 of 0.350-0.380 where I1 is the intensity of the X-ray diffraction peak appearing at a 2theta of 35-36º and I2 is the intensity of the X-ray diffraction peak appearing at a 2theta of 29.5-30.5º. |
