Enhancement of the high-field J c properties of MgB 2/Fe tapes by acetone doping

Dongliang Wang; Yanwei Ma; Zhaoshun Gao; Xianping Zhang; Lei Wang; Eric Mossang; Gen Nishijima; Satoshi Awaji; Kazuo Watanabe

doi:10.1007/s10948-009-0464-y

Enhancement of the high-field J _c properties of MgB ₂/Fe tapes by acetone doping

Dongliang Wang, Yanwei Ma, Zhaoshun Gao, Xianping Zhang, Lei Wang, Eric Mossang, Gen Nishijima, Satoshi Awaji, Kazuo Watanabe

金属材料研究所・附属強磁場超伝導材料研究センター

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

We report the effect of acetone addition on in situ powder-in-tube processed MgB ₂/Fe tapes by using acetone as liquid additive. The amount of acetone was varied from 0 to 15 wt.%. We found that a significant J _c-B enhancement was easily achieved in high field by acetone doping. At 4.2 K, the transport J _c for the best acetone added tapes (5 wt.%) reached up to 2.4×10 ⁴ A/cm ² at 10 T. With increasing acetone concentration, the a-axis lattice parameters, B _c2 and B _irr, were not much changed; however, the insulating MgO impurities and pores gradually increased, thereby resulting in the obvious decrease of J _c values for 10 and 15 wt.% acetone-added samples, especially within low field region.

本文言語	English
ページ（範囲）	671-676
ページ数	6
ジャーナル	Journal of Superconductivity and Novel Magnetism
巻	22
号	7
DOI	https://doi.org/10.1007/s10948-009-0464-y
出版ステータス	Published - 2009 10月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

文献へのアクセス

10.1007/s10948-009-0464-y

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引用スタイル

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title = "Enhancement of the high-field J c properties of MgB 2/Fe tapes by acetone doping",

abstract = "We report the effect of acetone addition on in situ powder-in-tube processed MgB 2/Fe tapes by using acetone as liquid additive. The amount of acetone was varied from 0 to 15 wt.%. We found that a significant J c-B enhancement was easily achieved in high field by acetone doping. At 4.2 K, the transport J c for the best acetone added tapes (5 wt.%) reached up to 2.4×10 4 A/cm 2 at 10 T. With increasing acetone concentration, the a-axis lattice parameters, B c2 and B irr, were not much changed; however, the insulating MgO impurities and pores gradually increased, thereby resulting in the obvious decrease of J c values for 10 and 15 wt.% acetone-added samples, especially within low field region.",

keywords = "Acetone doping, Critical current density, MgB, Superconducting tape",

author = "Dongliang Wang and Yanwei Ma and Zhaoshun Gao and Xianping Zhang and Lei Wang and Eric Mossang and Gen Nishijima and Satoshi Awaji and Kazuo Watanabe",

note = "Funding Information: Acknowledgements The authors thank Haihu Wen, Liye Xiao, Ling Xiao, Liangzhen Lin, Weiwen Huang, Weiwen Huang, H. Matsuo, and T. Inoue for their help and useful discussion. This work is partially supported by the National Natural Science Foundation of China under Grant No. 50777062 and No. 50802093, the National {\textquoteleft}973{\textquoteright} Program (Grant No. 2006CB601004), and International Cooperation Project between China and Japan (Project No. 2008ICC-PROJECT-05).",

year = "2009",

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doi = "10.1007/s10948-009-0464-y",

language = "English",

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AU - Wang, Dongliang

AU - Ma, Yanwei

AU - Gao, Zhaoshun

AU - Zhang, Xianping

AU - Wang, Lei

AU - Mossang, Eric

AU - Nishijima, Gen

AU - Awaji, Satoshi

AU - Watanabe, Kazuo

N1 - Funding Information: Acknowledgements The authors thank Haihu Wen, Liye Xiao, Ling Xiao, Liangzhen Lin, Weiwen Huang, Weiwen Huang, H. Matsuo, and T. Inoue for their help and useful discussion. This work is partially supported by the National Natural Science Foundation of China under Grant No. 50777062 and No. 50802093, the National ‘973’ Program (Grant No. 2006CB601004), and International Cooperation Project between China and Japan (Project No. 2008ICC-PROJECT-05).

PY - 2009/10

Y1 - 2009/10

N2 - We report the effect of acetone addition on in situ powder-in-tube processed MgB 2/Fe tapes by using acetone as liquid additive. The amount of acetone was varied from 0 to 15 wt.%. We found that a significant J c-B enhancement was easily achieved in high field by acetone doping. At 4.2 K, the transport J c for the best acetone added tapes (5 wt.%) reached up to 2.4×10 4 A/cm 2 at 10 T. With increasing acetone concentration, the a-axis lattice parameters, B c2 and B irr, were not much changed; however, the insulating MgO impurities and pores gradually increased, thereby resulting in the obvious decrease of J c values for 10 and 15 wt.% acetone-added samples, especially within low field region.

AB - We report the effect of acetone addition on in situ powder-in-tube processed MgB 2/Fe tapes by using acetone as liquid additive. The amount of acetone was varied from 0 to 15 wt.%. We found that a significant J c-B enhancement was easily achieved in high field by acetone doping. At 4.2 K, the transport J c for the best acetone added tapes (5 wt.%) reached up to 2.4×10 4 A/cm 2 at 10 T. With increasing acetone concentration, the a-axis lattice parameters, B c2 and B irr, were not much changed; however, the insulating MgO impurities and pores gradually increased, thereby resulting in the obvious decrease of J c values for 10 and 15 wt.% acetone-added samples, especially within low field region.

KW - Acetone doping

KW - Critical current density

KW - MgB

KW - Superconducting tape

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