希少元素フリー高性能永久磁石開発への元素戦略磁性材料研究拠点の取り組み

  • 広沢 哲
    元素戦略磁性材料研究拠点,(独) 物質・材料研究機構

書誌事項

タイトル別名
  • Approach of Elements Strategy Initiative Center for Magnetic Materials toward Development of Critical-Element-Free High-Performance Permanent Magnets
  • キショウ ゲンソ フリー コウセイノウ エイキュウ ジシャク カイハツ エ ノ ゲンソ センリャク ジセイ ザイリョウ ケンキュウ キョテン ノ トリクミ

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説明

In order to clarify and sort out entangled structure-related factors that determine the intrinsic coercivity of permanent magnet materials, both atomic-resolution microstructural analyses and description of the dynamics of magnetization associated with the microstructure are required. These are extremely challenging requirements that need further developments of analytical tools and computational techniques. Elements Strategy Initiative Center for Magnetic Materials (ESICMM) sets platforms for these two areas of investigations where researchers from various backgrounds interact with each other and develop an integrated description of structure-coercivity phenomena as a multi-physics phenomenon. This article briefly describes the ESICMM activities in these platforms and a few examples of its current achievements in the subfields of Dy–free Nd–Fe–B and new materials exploration.

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