Abstract: The effects of Bi₂O₃-V₂O₅ on sinterability and magnetic properties were investigated. The results show that, the addition of Bi₂O₃-V₂O₅
can accelerate the grains growing. The morphology of the sample’s section shows large grains increasing in direct ratio with amount of the addition. XRD patterns
confirm that a small amount of unknown phases appear and the grain boundary becomes more thick with an increace of the amount of the additive. But, this addition of
sintering aids can lower the sintering temperature to less than 875℃, and shorten soaking time to 30min for Ni-Cu-Zn ferrite. The permeability of the
ferrite added 1wt% the sintering aids can reach to 195 at 10MHz.

Key words: low firing, soft ferrite, sintering aids