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MgB₂ 超伝導バルク磁石の現状と展望
https://iwate-u.repo.nii.ac.jp/records/15686
https://iwate-u.repo.nii.ac.jp/records/15686b9d37bf4-b796-4764-8204-26b8b25505c6
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
jcssj-v56n6p309-316 (1.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-06-02 | |||||
| タイトル | ||||||
| タイトル | MgB₂ 超伝導バルク磁石の現状と展望 | |||||
| タイトル | ||||||
| タイトル | Present status and future perspective of the MgB₂ superconductor bulk magnets | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | MgB2 superconductor | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | bulk magnet | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | trapped field | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | field-cooled magnetization | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | pulsed field magnetization | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
内藤, 智之
× 内藤, 智之× 藤代, 博之 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 94479 | |||||
| 姓名 | NAITO, Tomoyuki | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 94480 | |||||
| 姓名 | FUJISHIRO, Hiroyuki | |||||
| 著者(機関) | ||||||
| 値 | 岩手大学理工学部 | |||||
| 著者(機関) | ||||||
| 値 | 岩手大学理工学部 | |||||
| 登録日 | ||||||
| 日付 | 2022-06-02 | |||||
| 書誌情報 |
低温工学 en : Journal of Cryogenics and Superconductivity Society of Japan 巻 56, 号 6, p. 309-316, 発行日 2021 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1880-0408 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0389-2441 | |||||
| Abstract | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | We have studied the trapped field properties of the MgB2 bulk superconductors fabricated by various methods. The MgB2 bulks were magnetized by a filed-cooled magnetization (FCM) method using a superconductor coil and a pulsed field magnetization (PFM) method using a copper coil. We firstly obtained a trapped field of 1.5 T at 14 K by FCM for an MgB2 disc bulk (30 mm diameter and 7 mm thickness) with a filling factor of about 50 %, which was fabricated by an in-situ capsule method using a home-made capsule. The trapped field of MgB2 bulk by FCM was enhanced up to 2.9 T by the densification and the enlargement. Such dense MgB2 bulks were fabricated by an in-situ hot isostatic pressing under the pressure of up to 980 MPa or an ex-situ spark plasma sintering by applying uniaxial stress of 50 MPa. An in-situ infiltration method without the physical pressure also produced the dense MgB2 bulks, which trapped a 3 T-class magnetic field. The Ti-doping improved considerably the trapped field by FCM up to 5.6 T at 11.3 K for the triple-stacked Ti-doped MgB2 bulks. The PFM method also produced a Tesla-class MgB2 bulk magnet. The trapped field of 1.1 T at 13 K was obtained for the HIP-processed MgB2 disc bulk (22 mm diameter and 20 mm thickness). A magnetic field of 1.6 T was trapped at 20 K in the MgB2 bulk composite, consisting of two ring-shaped MgB2 bulks sandwiched by four thin copper plates and an inserted soft-iron yoke cylinder, using double PFM using a split-type coil with softiron yokes. We have shown the potential of the MgB2 bulk magnets for the practical superconducting applications. | |||||
| 抄録（URL） | ||||||
| 表示名 | MgB2 超伝導バルク磁石の現状と展望 | |||||
| URL | https://www.jstage.jst.go.jp/article/jcsj/56/6/56_309/_article/-char/ja/ | |||||
| 出版者 | ||||||
| 出版者 | 公益社団法人 低温工学・超電導学会 | |||||
| 権利 | ||||||
| 権利情報 | © 2021 公益社団法人 低温工学・超電導学会 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00333419 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.2221/jcsj.56.309 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
