| 摘要 |
PURPOSE:To obtain the title material superior in overall characteristics including saturated flux density, its temp. coefficient, magnetic loss, Curie temp. and dielectric loss by substituting a part of the composition of lithium ferrite with Zn and Mn of a specific value. CONSTITUTION:The material is represented by the general formula: Li0.5-0.5x-0.5yFe2.5-0.5x-0.5yZnxMnyO4, wherein x and y are supposed to exist within the range 0.15<=x<=0.45, 0.02<=y<=0.18. For example, each raw material of LiCO3, Fe2O3, ZnO, MnCO3 are mixed with ethyl alcohol as dispersion catalyst so that the above mentioned composition is obtained, and prebaked at 800 deg.C, and after being crushed, press-formed adding binder, baked at 1100-1150 deg.C and the sintered body is obtained. |
