Enhancement of Upper Critical Field and Critical Temperature by Prebending Process for Practical Nb<sub>3</sub>Sn Wires
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- Awaji Satoshi
- High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
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- Oguro Hidetoshi
- High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
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- Nishijima Gen
- High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
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- Watanabe Kazuo
- High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
書誌事項
- タイトル別名
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- Enhancement of Upper Critical Field and Critical Temperature by Prebending Process for Practical Nb3Sn Wires
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抄録
It is recognized that the strain in Nb3Sn conductors is a serious problem, because it suppresses superconducting properties. We have proposed that prebending treatment, which means repeated bending loads, is one of the ways to control the strain state. The upper critical field and the critical temperature were examined for the prebent Nb3Sn wires. We found that the enhancement of the upper critical field from 23.7 T to 25.2 T at 4.5 K and the enhancement of the critical temperature from 17.4 K to 17.9 K were achieved for the CuNb-reinforced Nb3Sn wire by applying the prebending strain. Since these values are similar to those of the strain-free Nb3Sn bulk, the strain state of the wires is definitely optimized by the prebending treatment.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 43 (6A), L709-L711, 2004
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
- 1390001206265246976
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- NII論文ID
- 10013097069
- 210000057295
- 130004532148
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- NII書誌ID
- AA11906093
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 6956874
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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
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- 使用不可