書誌事項
- タイトル別名
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- Improvements in the Coercivity of Iron-Based Nanocrystalline Low-Rare-Earth Fe3B-Nd Permanent Magnets.
抄録
Fe3B-based Nd-Fe-B permanent magnetic materials containing Co and Mas additives, where M is one of Al, Si, Cu, Ga, Ag, and Au, were prepared in an extremely low-rare-earth concentration range of around 4 atomic percent. The hard magnetic properties develop as a result of a heat treatment of rapidly solidified amorphous ribbons, which produces a metastable nanocrystalline structure consisting of Fe3B and Nd2Fe14B. Use of the additives considerably reduces the crystallite sizes, and consequently, the alloys attain higher coercivity than that obtained in alloys without the additives. Compaction-molded resin-borlded magnets produced from the Nd-Fe-B-Co-M materials have the following magnetic propertise: HcJ=300kA/m-470kA/m, Br=0.7 T-0.9 T, and (BH) max=50 kJ/m3-73 kJ/m3. The typical values of the temperature coefficients of Br and HcJ of the bonded magnets are -0.05%/K and -0.35%/K, respectively, in the 297 K-413 K range.
収録刊行物
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- 日本応用磁気学会誌
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日本応用磁気学会誌 17 (2), 185-190, 1993
公益社団法人 日本磁気学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205088074880
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- NII論文ID
- 130004924242
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- COI
- 1:CAS:528:DyaK2MXis1Gktro%3D
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- ISSN
- 18804004
- 02850192
- http://id.crossref.org/issn/02850192
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可