METHOD OF PRODUCING ALPHA-FE/R2TM14B-TYPE NANOCOMPOSITE MAGNET
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United States of America Patent
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Issued Date -
Jan 9, 2014
app pub date -
Aug 13, 2012
filing date -
Aug 17, 2011
priority date (Note) -
Abandoned
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Abstract
There is provided a method of producing an α-Fe/R2TM14B-type nanocomposite magnet where R is 9 at. % or more but less than 11.76 at. % of Nd or Pr, TM is Fe or a substance in which a portion of Fe is substituted with Co of 20 at. % or less, and B is 6 to 8 at. %. A relatively long length nanocrystalline ribbon having a coercivity of 600 kA/m or more in which a content of flakes of less than 10 mm in length is 20% or less is coated with a polymeric film and then cut into an intended length, or punched into a specific shape.
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