Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet
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United States of America Patent
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Oct 22, 2019
Grant Date -
Nov 2, 2017
app pub date -
Sep 30, 2015
filing date -
Sep 30, 2014
priority date (Note) -
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Abstract
There is provided a ferrite powder for bonded magnets capable of producing ferrite bonded magnets with high BHmax, excellent in MFR when converted to a compound, with high p-iHc, wherein an average particle size of particles obtained by a dry laser diffraction measurement is 5 μm or less, a specific surface area is 1.90 m2/g or more and less than 3.00 m2/g, a compression density is 3.40 g/cm3 or more and less than 3.73 g/cm3, and a compressed molding has a coercive force of 2800 Oe or more and less than 3250 Oe.
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