Ferrite is the cheapest magnetic material and has a high corrosion resistance making coating unnecessary. This magnetic material is hard and fragile and must be processed with diamond, preferably when it is not in a magnetic state. Because it might shrink during the sinter process a tolerance of ± 2 % should be taken into account when determining t1
Ferrite magnets are sintered permanent magnetic materials, composed of barium and strontium ferrite magnets, this in addition to anti demagnetization strong performance, and low cost advantages. Ferrite magnets are hard and brittle and require special machining processes. Because of the anisotropic magnet manufacturing oriented along the direction,1
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