Ferrite powder for a bonded magnet, a method of manufacturing the ferrite powder, and a ferrite-base bonded magnet

摘要

A ferrite-based bonded magnet having a BH _max value of 2.65 MGOe or more when molded in a magnetic field, a method for producing the same, and a ferrite-based bonded magnet using the ferrite powder for the bonded magnet. There is provided a ferrite powder for a bonded magnet having an average value of a ratio (major axis length / minor axis length) of the coarse ferrite particles having an extrusion density of 3.50 g / cm 3 or more and a major axis length of 1.0 탆 or more of 1.60 or less.