| 简介 |
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 κRB of the composite material is higher than that κb of the component of the heat shield layer 22. The thermal conductivity κb of the component of the heat shield layer 22 is lower than that κr of the above rare earth-iron alloy.
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