| 摘要 |
PURPOSE:To obtain excellent properties of a core which forms a small-sized inductance element having high resistance, high Q and variable inductance to be easily provided by containing much smaller amount of Fe2O3 than stoichiometric Fe2O3 and predetermined components to be added. CONSTITUTION:0.55-1.4wt.% CoO, 1.5-8wt.% PbO and 0.5-9wt.% talc are added to a base material which is represented by oxide and contains 5-40mol.% Fe2O3, 1-6mol.% CuO and 54-95mol.% NiO with the base material as a reference. Thus, it can be advantageously used as a core which forms a small-sized inductance element having high Q in high frequency band of 200MHz or higher and increasing its inductance. |
