Effect of Heat Treatment Processing on Static Magnetism Properties of Spinel Ni0.5Zn0.45Co0.05Fe2O4
Spinel Ni0.5Zn0.45Co0.05Fe2O4 nano-particles were prepared using sol-gel method, then heat treated with three different processes. The static magnetism properties were measured by VSM. The results show that increasing heat treated temperature and prolonging heat treated time can do contribution to the improvement of magnetic property. When heat treated in 800℃ for 8h, the material shows high saturation magnetization(Ms=73.261 emu/g) and initial permeability(μi=0.210emu/Oe*g), low coercivity (Hc=30.241Oe). In this work, the effect of magnetic heat treatment on the improvement of static magnetism properties was also studied. The magnetic heated treatment for Ni0.5Zn0.45Co0.05Fe2O4 ferrite could improve its static magnetism properties, the material obtained exhibits high saturation magnetization (Ms=83.839emu/g) even heat treated at relatively low temperature(600℃ for 2h).
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