To suppress a decrease in coercive force of a permanent magnet.SOLUTION: A permanent magnet is represented by a composition formula: RN(CrSiM). The permanent magnet includes: a first phase having at least one crystal structure selected from among a ThNitype, a ThZntype, and a TbCutype; and a second phase having at least one crystal structure selected from a MgCutype and a PuNitype. A volume ratio of a total amount of the second phase is 5% or less.SELECTED DRAWING: Figure 1
【課題】永久磁石の保磁力の低下を抑制する。【解決手段】永久磁石は、組成式:RNX(CrpSiqM1−p−q)Zで表される。永久磁石は、Th2Ni17型、Th2Zn17型、及びTbCu7型から選ばれる少なくとも一つの結晶構造を有する第1の相と、MgCu2型及びPuNi3型から選ばれる少なくとも一つの結晶構造を有する第2の相と、を具備する。第2の相の総量の体積比率は5%以下である。【選択図】図1
PERMANENT MAGNET, ROTATING ELECTRIC MACHINE, AND VEHICLE
永久磁石、回転電機、及び車両
2020-05-28
Patent
Elektronische Ressource
Japanisch
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