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Enhanced high-field performance in Fe-sheathed MgB2 tapes using inexpensive stearic acid additives

Published online by Cambridge University Press:  31 January 2011

Yanwei Ma ,
Zhaoshun Gao ,
Xianping Zhang ,
Dongliang Wang ,
Zhengguang Yu ,
K. Watanabe ,
Haihu Wen  and
E. Mossang
Yanwei Ma*
Affiliation:
Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
Zhaoshun Gao
Affiliation:
Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
Xianping Zhang
Affiliation:
Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
Dongliang Wang
Affiliation:
Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
Zhengguang Yu
Affiliation:
Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China
K. Watanabe
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
Haihu Wen
Affiliation:
Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
E. Mossang
Affiliation:
Grenoble High Magnetic Field Laboratory, C.N.R.S., 25, 38 042 Grenoble Cedex 9, France
*
a)Address all correspondence to this author. e-mail: ywma@mail.iee.ac.cn
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Abstract

High performance Fe-cladded MgB2 taps were prepared by the in situ powder-in-tube method utilizing very cheap stearic acid (C18H36O2) as dopants. The amount of stearic acid was varied from 0 to 30 wt%. We found that a significant enhancement of Jc, Hirr, and Hc2 in comparison with undoped samples was easily achieved. At 4.2 K, the transport Jc for the best doped tapes (10 wt%) reached 2 × 104 A/cm2 at 10 T and 3.7 × 103 A/cm2 at 14 T, respectively, an order of magnitude higher than for the pure tapes. In particular, at 20 K, the irreversibility field of the 10 wt% doped tape was around 10 T, which is comparable to the upper critical field of the commercial NbTi at 4.2 K. The results demonstrate great potential of MgB2 tapes for superconducting magnets.

Keywords

DopantElectrical propertiesSuperconducting
Type
Rapid Communications
Information
Journal of Materials Research , Volume 22 , Issue 11 , November 2007 , pp. 2987 - 2991
Copyright
Copyright © Materials Research Society 2007

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References

REFERENCES

1Iwasa, Y., Larbalestier, D.C., Okada, M., Penco, R., Sumption, M.D., Xi, X.: A round table discussion on MgB2 toward a wide market or a niche production? A summary. IEEE Trans. Appl. Supercond. 16, 1457 2006CrossRefGoogle Scholar
2Braccini, V., Gurevich, A., Giencke, J.E., Jewell, M.C., Eom, C.B., Larbalestier, D.C., Pogrebnyakov, A., Cui, Y., Liu, T., Hu, Y.F., Redwing, J.M., Li, Q., Xi, X.X., Singh, R.K., Gandikota, R., Kim, J., Wilkens, B., Newman, N., Rowell, J., Moeckly, B., Ferrando, V., Tarantini, C., Marré, D., Putti, M., Ferdeghini, C., Vaglio, R., Haanappel, E.: High-field superconductivity in alloyed MgB2 thin films. Phys. Rev. B 71, 012504 2005CrossRefGoogle Scholar
3Larbalestier, D.C., Gurevich, A., Feldmann, D. Matthew, Polyanskii, A.: High-Tc superconducting materials for electric power applications. Nature 414, 368 2001CrossRefGoogle ScholarPubMed
4Ma, Y., Zhang, X., Nishijima, G., Watanabe, K., Awaji, S., Bai, X.: Significantly enhanced critical current densities in MgB2 tapes made by a scaleable nanocarbon addition route. Appl. Phys. Lett. 88, 072502 2006CrossRefGoogle Scholar
5Dou, S.X., Soltanian, S., Horvat, J., Wang, X.L., Zhou, S.H., Ionescu, M., Liu, H.K., Munroe, P., Tomsic, M.: Enhancement of the critical current density and flux pinning of MgB2 superconductor by nanoparticle SiC doping. Appl. Phys. Lett. 81, 3419 2002CrossRefGoogle Scholar
6Flukiger, R., Suo, H.L., Musolino, N., Beneduce, C., Toulemonde, P., Lezza, P.: Superconducting properties of MgB2 tapes and wires. Physica C 385, 286 2003CrossRefGoogle Scholar
7Kumakura, H., Kitauchi, H., Matsumoto, A., Hatakeyama, H.: Upper critical fields of powder-in-tube-processed MgB2/Fe tape conductors. Appl. Phys. Lett. 84, 3669 2004CrossRefGoogle Scholar
8Wang, J., Bugoslavsky, Y., Berenov, A., Cowey, L., Caplin, A.D., Cohen, L.F., MacManus-Driscoll, J.L., Cooley, L.D., Song, X., Larbalestier, D.C.: High critical current density and improved irreversibility field in bulk MgB2 made by a scaleable, nanoparticle addition route. Appl. Phys. Lett. 81, 2026 2002CrossRefGoogle Scholar
9Sumption, M.D., Bhatia, M., Rindfleisch, M., Tomsic, M., Soltannian, S., Dou, S.X., Collings, E.W.: Large upper critical field and irreversibility field in MgB2 wires with SiC additions. Appl. Phys. Lett. 86, 092507 2005CrossRefGoogle Scholar
10Cheng, C.H., Zhao, Y.: Enhancement of critical current density of MgB2 by doping Ho2O3. Appl. Phys. Lett. 89, 252501 2006CrossRefGoogle Scholar
11Senkowicz, B.J., Giencke, J.E., Patnaik, S., Eom, C.B., Hellstrom, E.E., Larbalestier, D.C.: Improved upper critical field in bulk-form magnesium diboride by mechanical alloying with carbon. Appl. Phys. Lett. 86, 202502 2005CrossRefGoogle Scholar
12Ma, Y., Zhang, X., Awaji, S., Gao, Z., Wang, D., Nishijima, G., Watanab, K.: Large irreversibility field in nanoscale C-doped MgB2/Fe tape conductors. Supercond. Sci. Technol. 20, L5 2007CrossRefGoogle Scholar
13Wilke, R.H.T., Bud’ko, S.L., Canfield, P.C., Finnemore, D.K., Suplinskas, R.J., Hannahs, S.T.: Systematic effects of carbon doping on the superconducting properties of Mg(B1–xCx)2. Phys. Rev. Lett. 92, 217003 2004CrossRefGoogle ScholarPubMed
14Yamada, Y., Hirakawa, M., Kumakura, H., Kitaguchi, H.: Effect of aromatic hydrocarbon addition on in situ powder-in-tube processed MgB2 tapes. Supercond. Sci. Technol. 19, 175 2006CrossRefGoogle Scholar
15Kim, J.H., Zhou, S., Hossain, M.S.A., Pan, A.V., Dou, S.X.: Carbohydrate doping to enhance electromagnetic properties of MgB2 superconductors. Appl. Phys. Lett. 89, 142505 2006CrossRefGoogle Scholar
16Wang, X., Cheng, Z., Dou, S.X.: Silicon oil: A cheap liquid additive for enhancing in-field critical current density in MgB2. Appl. Phys. Lett. 90, 042501 2007CrossRefGoogle Scholar
17Gurevich, A.: Enhancement of the upper critical field by nonmagnetic impurities in dirty two-gap superconductors. Phys. Rev. B 67, 184515 2003CrossRefGoogle Scholar
18Godeke, A., Jewell, M.C., Fischer, C.M., Squitieri, A.A., Lee, P.J., Larbalestier, D.C.: The upper critical field of filamentary Nb3Sn conductors. J. Appl. Phys. 97, 093909 2005CrossRefGoogle Scholar