書誌事項
- タイトル別名
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- Magnetic Properties of High Coercivity Melt-Spun Didymium-Fe-Co-Nb-V-Y-Hf-B System Ribbons and Their Bonded Magnets
- 高保磁力Didymium-Fe-Co-Nb-V-Y-Hf-B系急冷薄帯並びにそれらボンド磁石の磁気特性
- コウホジリョク Didymium Fe Co Nb V Y Hf Bケイ キュウレイ ハクタイ ナラビニ ソレラ ボンド ジシャク ノ ジキ トクセイ
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抄録
The melt-spun ribbons of Didymium-Fe-Co-Nb-V-Y-Hf-B system alloys were prepared by single roller liquid rapid-quenching method, and the effects of composition, wheel velocity and heat treatment on the magnetic properties were investigated. As the result, Didymium11.0Fe69.6Co10Nb1V1Y0.7Hf0.7B6 optimum composition ribbons prepared at a wheel velocity of 22.5 m/s were crystallized by heat treatment, and the optimum heat treatment condition was found to be at 725°C for 5 min, and then the values of (BH)max and HcJ were 105.7 kJ/m3, 1307.4 kA/m, respectively. The temperature coefficients of Jr and HcJ for the ribbons crystallized from the melt-spun Didymium11.0Fe69.6Co10Nb1V1Y0.7Hf0.7B6 alloy were α(Jr)ave.=−0.10 %/°C (reversible) and α(HcJ)=−0.48 %/°C (irreversible), respectively. The value of (BH)max for the isotropic compression molding Didymium11.0Fe69.6Co10Nb1V1Y0.7Hf0.7B6 bonded magnet prepared by using the ribbons annealed at 725°C for 5 min is 56.6 kJ/m3 and the density is 6.14 Mg/m3. Irreversible loss of the isotropic bonded magnet are −1.21% (at 150°C) and −2.42% (at 200°C).
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 55 (7), 529-534, 2008
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206309037440
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- NII論文ID
- 10024350657
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BD1cXovFehtbo%3D
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 9587197
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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
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- 抄録ライセンスフラグ
- 使用不可