| 摘要 |
PURPOSE:To form an inductance having a small change in inductance by a method wherein the magnetic core to be used for an inductor is formed by a sintered body consisting of an Ni-containing magnetic oxide ferrite material containing at least a kind of Ni2O3 and V2O5. CONSTITUTION:The magnetic core to be used for an inductor consists of a sintered body formed by adding at least a kind of Bi2O3 and V2O5 of 0.5-5wt.% as an additive to the magnetic oxide ferrite material containing Ni as an essential component. The oxide ferrite material is selected from Ni-Zn ferrite, Ni-Cu- Zn ferrite, Ni-Cu-Mg ferrite, and Ni-Mn-Cu-Zn ferrite. As a result, the inductor having a small change in in ductance can be formed even when there is a change in external stress. |
