衝撃成形法による希土類 : アルミニウム系混合磁性多結晶体の作成と熱的・磁気的性質(<小特集>衝撃小特集)

概要

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A preparation method of a complex tyoe Ral_2 magnetic system (where R denotes rare earth ions) for Ericsson type magnetic refrigerator is investigated. Previously, the aouthors reported on the model complex magnetic refrigerant with layer structure and concluded that this complex magnetic refrigerant shows a tenperature independent magnetic entropy change ΔS_M in particular tenperature range, which is suitable for the Ericsson cycle, satisfying the Carnot principle. In this paper, the preparation of a complex type RAl_2 magnetic mixture by a shock compression method, which is a high density mixture of its components in grain size scale, is described and its thermal and magnetic properties are discussed in respect to application to the Ericsson type magnetic refrigerant.
社団法人日本材料学会の論文
1987-12-15