| 摘要 |
PROBLEM TO BE SOLVED: To obtain a magnetic ferrite having less degradation in magnetic characteristic against a stress, especially in magnetic permeability μ, capable of calcinating at a low temperature, i.e., calcinating at or lower than a melting point of Ag or Ag alloy used as an electrode material, and at a low cost. SOLUTION: This laminate type ferrite part is produced by using powder of a magnetic ferrite having composition of 40-51 mol% Fe2O3, 7-30 mol% CuO, 0.5-35 mol% ZnO and 5-35 mol% MgO, and a peak position of its particle size distribution in 0.3-1.2 μm range. The above MgCuZn ferrite shows less degradation in magnetic permeability μ, and since it uses the powder having the peak position of particle size distribution at 0.3-1.2 μm range, it is possible to perform a simultaneous calcination with internal electrodes consisting of Ag or Ag alloy. |
