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In order to improve the properties of inert anode of NiFe_2O_4 spinel, some additive V_2O_5 was added to raw materials-powders of NiO and Fe_2O_3. The powders of NiO, Fe_2O_3 were mixed with slight amount of V_2O_5, then they are moulded and sintered at 1200℃ for 6h.The sintering mechanism of powders of NiO and Fe_2O_3 with some additive V_2O_5 was researched. The effect of V_2O_5 on density, electrical conductivity and corrosion resistance of inert anode of NiFe_2O_4 spinel was studied at the same time. The results show that the sintering mechanism for powders of NiO and Fe_2O_3 with some additive V_2O_5 is liquid-phase sintering. Additive V_2O_5 can increase the density of the samples, especially it improves the corrosion resistance of the samples remarkably. When the amount of V_2O_5 is 1.5%, the sample’s corrosion rate is 1/80 of that of sample without V_2O_5. But the electrical conductivity of the samples with V_2O_5 is lower than that of the sample without V_2O_5.
In order to improve the properties of inert anode of NiFe_2O_4 spinel, some additive V_2O_5 was added to raw materials-powders of NiO and Fe_2O_3. The powders of NiO, Fe_2O_3 were mixed with a slight amount of V_2O_5, then they were moulded and sintered at 1200 ° C for 6h. The sintering mechanism of powders of NiO and Fe_2O_3 with some additive V_2O_5 was researched. The effect of V_2O_5 on density, electrical conductivity and corrosion resistance of inert anode of NiFe_2O_4 spinel was studied at the same time. The results show that the sintering mechanism for powders of NiO and Fe_2O_3 with some additive V_2O_5 is liquid-phase sintering. Additive V_2O_5 can increase the density of the samples, especially it improves the corrosion resistance of the samples remarkably. When the amount of V_2O_5 is 1.5%, the sample’s The corrosion rate is 1/80 of that of sample without V 2 O 5. But the electrical conductivity of the samples with V 2 O 5 is lower than that of the sample without V 2 O 5.