Nickel zinc ferrite low temperature high density production method and its product
A technology of nickel-zinc ferrite and manufacturing method, which is applied in the direction of magnetism of inorganic materials, can solve the problems of lowering the Curie temperature and deterioration of characteristics, and achieve the effects of high Curie temperature, high magnetic permeability, and high saturation magnetic induction intensity
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[0023] 47.5~49.5mol% Fe 2 O 3 , 3.6~6.5mol% of CuO, 30~35mol% of ZnO, the rest is the main component of NiO, pre-fired after mixing, add 0.01~0.4wt% of Ti 2 O 5 , 0.01~0.5wt% Bi 2 O 3 , 0.01~0.5wt% of V 2 O 5 , 0.01~0.5wt% MoO 3 , 0.01~0.5wt% Cr 2 O 3 , 0.01~0.5wt% Nb 2 O 5 At least one of the secondary components, namely impurities, is then pulverized, and a small amount of binder PVA is added to make a slurry with a certain viscosity, which is granulated by spraying to make particles with 80-220 mesh. Then, the particles are pressed into the required After a sintering process with a sintering temperature of about 200℃ lower than that of the prior art, the blank can be highly densified (5.2g / cm 3 Above).
[0024] The main components and auxiliary components shown in Table 1 are the embodiments of the present invention (A, B, C, F, G, I, J). After testing, the density is 5.2g / cm 3 The sintering temperature required for the finished product and the permeability, saturation magnetic...
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