書誌事項
- タイトル別名
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- Change in Magnetic Domain Structure of Nd-Fe-B Sintered Magnets by Compressive Stress
- Nd-Fe-Bケイ ショウケツ ジシャク ノ アッシュク オウリョク ニ ヨル ジク コウゾウ ヘンカ
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<p>To clarify the relationship between compressive stresses and demagnetization of Nd-Fe-B sintered magnets, we have examined the change in domain configuration by compressive stresses using a Kerr microscope. The magnetic domains of five kinds of Nd-Fe-B sintered magnets have been observed. The magnets have a coercivity of 0.8-1.4 MA/m and residual magnetic flux density of 1.3-1.5 T. Irreversible demagnetization of Nd-Fe-B magnets with a low coercivity of 0.875 MA/m and high residual magnetic flux density of 1.41-1.47 T have occurred from applying a compressive stress of 100 MPa. The compression-affected area is approximately 0.14%. The stress more than 50 MPa is needed to demagnetize Nd-Fe-B magnets. The amount of irreversible demagnetization depends upon the intensity of the compressive stress as well as the residual magnetic flux and coercive force of the magnets.</p>
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 137 (7), 367-373, 2017
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
- 1390001204600302336
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- NII論文ID
- 130006839841
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- NII書誌ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL書誌ID
- 028383050
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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
