Title:
RARE EARTH MAGNET AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2015008232
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rare earth magnet which is less prone to the reduction in the magnetic characteristic even at high temperature, and a method for manufacturing the same.SOLUTION: A rare earth magnet 1 comprises: a plurality of coated magnetic particles 2 having magnetic particles 20 consisting of a rare earth-iron alloy containing a rare earth element and an iron group element and a heat shield layer 22 covering an outer periphery of the magnetic particle 20; and a bond phase 3 between the coated magnetic particles 2 and bonding coated magnetic particles 2 each other. The bond phase 3 consists of a composite material containing a resin and a filler dispersed into the resin. The thermal conductivity κof the composite material is higher than that κof the component of the heat shield layer 22. The thermal conductivity κof the component of the heat shield layer 22 is lower than that κof the above rare earth-iron alloy.
Inventors:
MAEDA TORU
Application Number:
JP2013133188A
Publication Date:
January 15, 2015
Filing Date:
June 25, 2013
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H01F1/08; B22F1/02; B22F3/00; C22C38/00; H01F1/057; H01F41/02
Attorney, Agent or Firm:
Hiroshi Yamano
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