Co_2Z ferrites obtain the quite good performance. In use second ball grindings in the gelatin spontaneous combustion method foundation to add Bi2O3 agglutinates in the low temperature sinter.

• 在此过程中得到一些有意义的结果:1在凝胶自燃法的基础上,采用二次球磨加Bi2O3的方法可获得性能较好的低温烧结Co_2Z铁氧体。