Influence of acetone doping on the Jc anisotropy of MgB 2/Fe tapes

D. L. Wang; Y. W. Ma; Z. S. Gao; C. Yao; L. Wang; X. P. Zhang; G. Nishijima; S. Awaji; K. Watanabe

doi:10.1016/j.physc.2010.05.131

Influence of acetone doping on the J_c anisotropy of MgB ₂/Fe tapes

D. L. Wang, Y. W. Ma, Z. S. Gao, C. Yao, L. Wang, X. P. Zhang, G. Nishijima, S. Awaji, K. Watanabe

IMR - High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

MgB₂/Fe tapes were prepared by in situ powder-in-tube process with acetone doping. The magnetic field was applied parallel and perpendicular to the tape surface and the effects of acetone doping on the J_c anisotropy were studied. It is found that the acetone doping not only improved J_c in high fields, but also decreased the anisotropy ratios Γ =J_c^||/J_c. In comparison to pure samples, the anisotropy ratios Γ for ace-tone-doped samples was decreased to 1.5 from 3.9 at 4.2 K and 10 T. The decreases of anisotropy ratios Γ for acetone-doped tapes may be attributed to the small MgB₂ grain sizes and the disorder induced by C substitution of B site.

Original language	English
Pages (from-to)	1435-1437
Number of pages	3
Journal	Physica C: Superconductivity and its Applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.131
Publication status	Published - 2010 Nov 1

Keywords

Acetone doping

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10.1016/j.physc.2010.05.131

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title = "Influence of acetone doping on the Jc anisotropy of MgB 2/Fe tapes",

abstract = "MgB2/Fe tapes were prepared by in situ powder-in-tube process with acetone doping. The magnetic field was applied parallel and perpendicular to the tape surface and the effects of acetone doping on the Jc anisotropy were studied. It is found that the acetone doping not only improved Jc in high fields, but also decreased the anisotropy ratios Γ =Jc||/Jc. In comparison to pure samples, the anisotropy ratios Γ for ace-tone-doped samples was decreased to 1.5 from 3.9 at 4.2 K and 10 T. The decreases of anisotropy ratios Γ for acetone-doped tapes may be attributed to the small MgB2 grain sizes and the disorder induced by C substitution of B site.",

keywords = "Acetone doping",

author = "Wang, {D. L.} and Ma, {Y. W.} and Gao, {Z. S.} and C. Yao and L. Wang and Zhang, {X. P.} and G. Nishijima and S. Awaji and K. Watanabe",

note = "Funding Information: The authors thank Haihu Wen, Liye Xiao, Ling Xiao, Liangzhen Lin, Yanbo Liu, Yuqing Kang, Yanhua Chen, Li Chen and Ping Ying for their help and useful discussion. This work is partially supported by the National Natural Science Foundation of China under Grant Nos. 50777062 and 50802093 , the National {\textquoteleft}973{\textquoteright} Program (Grant No. 2006CB601004 ), and the International Cooperation Project between China and Japan (Project No. 2008ICC-PROJECT-05).",

year = "2010",

month = nov,

day = "1",

doi = "10.1016/j.physc.2010.05.131",

language = "English",

volume = "470",

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T1 - Influence of acetone doping on the Jc anisotropy of MgB 2/Fe tapes

AU - Wang, D. L.

AU - Ma, Y. W.

AU - Gao, Z. S.

AU - Yao, C.

AU - Wang, L.

AU - Zhang, X. P.

AU - Nishijima, G.

AU - Awaji, S.

AU - Watanabe, K.

N1 - Funding Information: The authors thank Haihu Wen, Liye Xiao, Ling Xiao, Liangzhen Lin, Yanbo Liu, Yuqing Kang, Yanhua Chen, Li Chen and Ping Ying for their help and useful discussion. This work is partially supported by the National Natural Science Foundation of China under Grant Nos. 50777062 and 50802093 , the National ‘973’ Program (Grant No. 2006CB601004 ), and the International Cooperation Project between China and Japan (Project No. 2008ICC-PROJECT-05).

PY - 2010/11/1

Y1 - 2010/11/1

N2 - MgB2/Fe tapes were prepared by in situ powder-in-tube process with acetone doping. The magnetic field was applied parallel and perpendicular to the tape surface and the effects of acetone doping on the Jc anisotropy were studied. It is found that the acetone doping not only improved Jc in high fields, but also decreased the anisotropy ratios Γ =Jc||/Jc. In comparison to pure samples, the anisotropy ratios Γ for ace-tone-doped samples was decreased to 1.5 from 3.9 at 4.2 K and 10 T. The decreases of anisotropy ratios Γ for acetone-doped tapes may be attributed to the small MgB2 grain sizes and the disorder induced by C substitution of B site.

AB - MgB2/Fe tapes were prepared by in situ powder-in-tube process with acetone doping. The magnetic field was applied parallel and perpendicular to the tape surface and the effects of acetone doping on the Jc anisotropy were studied. It is found that the acetone doping not only improved Jc in high fields, but also decreased the anisotropy ratios Γ =Jc||/Jc. In comparison to pure samples, the anisotropy ratios Γ for ace-tone-doped samples was decreased to 1.5 from 3.9 at 4.2 K and 10 T. The decreases of anisotropy ratios Γ for acetone-doped tapes may be attributed to the small MgB2 grain sizes and the disorder induced by C substitution of B site.

KW - Acetone doping

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 20

ER -

Influence of acetone doping on the J_c anisotropy of MgB ₂/Fe tapes

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