Title:
永久磁石及びデバイス
Document Type and Number:
Japanese Patent JP2024020710
Kind Code:
A
Abstract:
【課題】磁気特性の優れた永久磁石、及び、当該永久磁石を備えるデバイスを提供すること。【解決手段】R:23~27wt%(ただし、Rは少なくともSmを含む希土類元素の合計)、Fe:22~27wt%、Mn:0.3~2.5wt%、Cu:4.0~5.0wt%を含み、残部がCo及び不可避不純物からなる組成を有する焼結体であって、複数の結晶粒と粒界相とを有し、前記粒界相におけるCuの濃度が45at%以上である、永久磁石である。【選択図】図1
More Like This:
JPS60173804 | MANUFACTURE OF RARE EARTH COBALT MAGNET |
JP2015128118 | METHOD OF MANUFACTURING RARE-EARTH MAGNET |
JPH06325916 | MANUFACTURE OF ANISOTROPIC PERMANENT MAGNET |
Inventors:
Masaaki Takezawa
Hiroaki Machida
Teruhiko Fujiwara
Hirokazu Makuta
Hiroaki Machida
Teruhiko Fujiwara
Hirokazu Makuta
Application Number:
JP2022123094A
Publication Date:
February 15, 2024
Filing Date:
August 02, 2022
Export Citation:
Assignee:
Kyushu Institute of Technology
Tokin Co., Ltd.
Tokin Co., Ltd.
International Classes:
H01F1/055; C22C19/07; C22C30/02
Attorney, Agent or Firm:
Ken Ieiri
Previous Patent: Energy storage systems and power conversion devices
Next Patent: Bath pot and water heater with bath pot
Next Patent: Bath pot and water heater with bath pot