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Abstract: Appropriate addition of CuO/V₂O₅ and the reduction of the granularity of the raw materials particle decrease the sintering temperature of niZn ferrite from 1200 °C to 930 °C. Furthermore, the magnetic properties of the niZn ferrite prepared at low temperature of 930 °C is superior to that of the niZn ferrite prepared by sintering at high temperature of 1200 °C because the microstructure of the niZn ferrite sintered at 930 °C is more uniform and compact than that of the niZn ferrite sintered at 1200 °C. The high permeability of 1700 and relative loss coefficient tanδ/μ_i of 9.0×10⁻⁶ at 100 kHz was achieved in the (Ni_0.17Zn_0.63Cu_0.20)Fe_1.915O₄ ferrite.

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