| 摘要 |
PROBLEM TO BE SOLVED: To provide a high saturation magnetic flux density ferrite material having a Bs value of >4,000 gauss and high electrical resistance of >=108 Ω.cm and exhibiting a high magnetic permeability of >=500 at room temperature, which is easily sintered. SOLUTION: The high saturation magnetic flux density ferrite material contains main components composed of 48 to 50 mol% Fe2O3, 1 to 5 mol% CuO and 0.1 to 1 mol% MnO, wherein the molar ratio of ZnO/NiO is 1 to 1.6 and, as assistant components, 0.01 to 0.2 part by weight MgO, 0.05 to 0.5 part by weight SiO2, 0.05 to 0.5 part by weight Al2O3 and 0.01 to 0.2 part by weight Cr2O3, in the main components, and furthermore preferably, the ferrite material contains, as assistant components, 0.001 to 0.1 part by weight ZrO2 and 0.001 to 0.1 part by weight Y2O3. |
