書誌事項
- タイトル別名
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- Low-temperature Diffusion Process for Hot-deformed Bulk Permanent Magnet using RE-Cu Eutectic Alloy
- ネツカン カコウ バルクネオジム ジシャク エ ノ RE-Cu キョウショウ ゴウキン ノ テイオン カクサン プロセス
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抄録
This paper reviews recent progresses in coercivity improvement of hot-deformed anisotropic Nd-Fe-B magnets by the low temperature grain boundary diffusion process using RE70Cu30 (RE = Pr, Nd) eutectic alloys. Using Pr70Cu30 alloy, the coercivity was enhanced from 1.60 T to 2.56 T. The hot-deformed samples are expanded along only c-axis direction after the diffusion process by the formation of thick Nd-rich grain boundary phase parallel to the c-planes of platelet shaped Nd2Fe14B grains. To suppress the reduction in remanence caused by the excess expansion during the diffusion process, we developed an expansion constraint eutectic diffusion process. We demonstrated high performance Dy-free anisotropy magnet with coercivity, µ0Hc = 1.94 T, and remanence, Br = 1.35 T, by the expansion constraint diffusion process using a Nd-Cu alloy as a diffusion source.
収録刊行物
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- 電気学会論文誌. A
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電気学会論文誌. A 136 (8), 478-483, 2016
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204598199424
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- NII論文ID
- 130005254616
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- NII書誌ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL書誌ID
- 027600368
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可