Thermodynamic properties of R2Fe14B (R=Dy, Nd) and dysprosium random substitution effect on coercivity in neodymium permanent magnets
Masamichi Nishino,
Hiroshi Hayasaka,
Seiji Miyashita
Abstract:Neodymium (Nd) magnets (Nd2Fe14B) are key materials for achieving high energy conversion efficiency. The coercive forces (fields) of the magnets are often reinforced by adding dysprosium (Dy), especially at high temperatures. To understand the magnetic properties of Dy-substituted systems (Nd1−xDyx)2Fe14B, it is important to study those of Dy2Fe14B and Nd2Fe14B and analyze the difference in detail from a microscopic viewpoint. Applying a recently developed atomistic model approach, we investigated thermodynami… Show more
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