| 摘要 |
PROBLEM TO BE SOLVED: To provide an NiCuZn based ferritic material having extremely good temperature characteristics (low change ratio of permeability to a temperature change), a high quality coefficient Q and high strength. SOLUTION: The NiCuZn based ferritic material has a composition containing, as the main components, 47.0 to 50.0 mol% Fe2O3, 0.3 to 1.5 mol% Mn2O3, 2.0 to 8.0 mol% CuO and 30.1 to 33.0 mol% ZnO, and the balance NiO. Further, 0.5 to 6.0 wt.% Bi2O3, 0.1 to 2.0 wt.% SiO2 and 0.05 to 1.0 wt.% Mg are added to the main components. |
