VERIFICATION OF Nd-(Fe,Co)-B PARTICLE POWDER BIENCAPSULATION METHOD BASED ON IMPEDANCE MEASUREMENTS
Abstract
In the paper the effect of the biencapsulation metod with Ni-P/epoxy resin and
phosphate/epoxy resin on corrosion resistance of bonded magnets – based on impedance
spectra. The values of charge transfer resistance of materials made of powder coated with
binder (encapsulation with epoxy resin) in relation to the value of the resistance of materials
made of powder after biencapsulation (with NiP/epoxy resin, phosphate/epoxy resin)
are larger, reflecting the inhibition of corrosion.
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