Permanent magnet and method for manufacturing the same

Permanent magnet and method for manufacturing the same

The present invention relates to a permanent magnet obtained by wet-mixing a Dy compound or a Tb compound with a magnet raw material to coat a surface of the magnet raw material with the Dy compound or the Tb compound, and sintering a green sheet obtained by mixing the resulting magnet raw material...

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Hauptverfasser: KUME KATSUYA, HORIO TOMOKAZU, OZEKI IZUMI, NAKAYAMA JUNICHI, FUKUDA YUUKI, HOSHINO TOSHINOBU
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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creator KUME KATSUYA
HORIO TOMOKAZU
OZEKI IZUMI
NAKAYAMA JUNICHI
FUKUDA YUUKI
HOSHINO TOSHINOBU
description The present invention relates to a permanent magnet obtained by wet-mixing a Dy compound or a Tb compound with a magnet raw material to coat a surface of the magnet raw material with the Dy compound or the Tb compound, and sintering a green sheet obtained by mixing the resulting magnet raw material with a resin binder and molding the resulting mixture. Since the present invention has the above-mentioned constitution, it becomes possible to sufficiently improve coercive force by Dy or Tb while decreasing the amount of Dy or Tb used. Further, it can be prevented that Dy or Tb is solid-solutionized in magnet particles to decrease residual magnetization.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
title Permanent magnet and method for manufacturing the same
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