Rise-Time Elongation Effect on Trapped Field and Temperature Rise in Pulse Field Magnetization for High Temperature Superconducting Bulk
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- Fujishiro Hiroyuki
- Faculty of Engineering, Iwate University
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- Kaneyama Masahiko
- Faculty of Engineering, Iwate University
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- Yokoyama Kazuya
- National Institute for Materials Science
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- Oka Tetsuo
- IMRA Material R&D Co., Ltd.
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- Noto Koshichi
- Faculty of Engineering, Iwate University
書誌事項
- タイトル別名
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- Rise-Time Elongation Effects on Trapped Field and Temperature Rise in Pulse Field Magnetization for High Temperature Superconducting Bulk
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説明
Pulse field magnetization (PFM) using a magnetic pulse of Bex=3.83–5.53 T with various rise times tr (=6–20 ms) has been performed for the cryocooled SmBaCuO bulk superconductor starting at the initial temperature of 40 K. The time evolutions of temperature T(t) and local field BLP(t) have been measured on the bulk surface after applying the magnetic pulse. With increasing tr, the temperature rise ΔT and the trapped field BTP increase for Bex≤4.70 T and decrease for Bex=5.53 T. The rise time tr required to realize the optimum BTP has been found to become longer for a smaller pulse field Bex. From the analyses of the generated heat Q after five successive applications of pulses (Nos. 1–5) with the same amplitude, the Q(No. 5) value, which can be regarded as the viscous loss Qv, decreases with increasing tr, due mainly to the decrease in the flux propagation velocity v in the bulk with longer tr.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 44 (7A), 4919-4925, 2005
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681242828672
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- NII論文ID
- 10016608692
- 130004534353
- 210000058337
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/13474065
- https://id.crossref.org/issn/13474065
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- NDL書誌ID
- 7362584
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
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