Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes

Yanwei Ma; Lei Wang; Yanpeng Qi; Zhaoshun Gao; Dongliang Wang; Xianping Zhang

doi:10.1109/TASC.2010.2079311

Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes

Yanwei Ma, Lei Wang, Yanpeng Qi, Zhaoshun Gao, Dongliang Wang, Xianping Zhang

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

36 Scopus citations

Abstract

The development of PIT fabrication process of iron pnictide superconducting wires and tapes has been reviewed. Silver was found to be the best sheath material, since no reaction layer was observed between the silver sheath and the superconducting core. The grain connectivity of iron pnictide wires and tapes has been markedly improved by employing Ag or Pb as dopants. At present, critical current densities in excess of 3750 A /cm 2 (I c = 37.5 A) at 4.2 K have been achieved in Ag-sheathed SrKFeAs wires prepared with the above techniques, which is the highest value obtained in iron-based wires and tapes so far. Moreover, Ag-sheathed Sm-1111 superconducting tapes were successfully prepared by PIT method at temperatures as low as ̃ 900 °C, instead of commonly used temperatures of ̃ 1200 °C. These results demonstrate the feasibility of producing superconducting pnictide composite wires, even grain boundary properties require much more attention. © 2010 IEEE.

Original language	English (US)
Pages (from-to)	2878-2881
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	21
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2010.2079311
State	Published - Jun 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors thank XiXiang Zhang at the KAUST for theTEM investigation, and S. Awaji and K. Watanabe at theIMR, Tohoku Univ. for the high field transport measurements.They are also indebted to H. H. Wen, D. C. Larbalestier,R. Flukiger, H. Kumakura, S. X. Dou and T. Matsushita foruseful comments.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes",

abstract = "The development of PIT fabrication process of iron pnictide superconducting wires and tapes has been reviewed. Silver was found to be the best sheath material, since no reaction layer was observed between the silver sheath and the superconducting core. The grain connectivity of iron pnictide wires and tapes has been markedly improved by employing Ag or Pb as dopants. At present, critical current densities in excess of 3750 A /cm 2 (I c = 37.5 A) at 4.2 K have been achieved in Ag-sheathed SrKFeAs wires prepared with the above techniques, which is the highest value obtained in iron-based wires and tapes so far. Moreover, Ag-sheathed Sm-1111 superconducting tapes were successfully prepared by PIT method at temperatures as low as{\~ } 900 °C, instead of commonly used temperatures of{\~ } 1200 °C. These results demonstrate the feasibility of producing superconducting pnictide composite wires, even grain boundary properties require much more attention. {\textcopyright} 2010 IEEE.",

author = "Yanwei Ma and Lei Wang and Yanpeng Qi and Zhaoshun Gao and Dongliang Wang and Xianping Zhang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank XiXiang Zhang at the KAUST for theTEM investigation, and S. Awaji and K. Watanabe at theIMR, Tohoku Univ. for the high field transport measurements.They are also indebted to H. H. Wen, D. C. Larbalestier,R. Flukiger, H. Kumakura, S. X. Dou and T. Matsushita foruseful comments. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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AU - Wang, Dongliang

AU - Zhang, Xianping

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank XiXiang Zhang at the KAUST for theTEM investigation, and S. Awaji and K. Watanabe at theIMR, Tohoku Univ. for the high field transport measurements.They are also indebted to H. H. Wen, D. C. Larbalestier,R. Flukiger, H. Kumakura, S. X. Dou and T. Matsushita foruseful comments. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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N2 - The development of PIT fabrication process of iron pnictide superconducting wires and tapes has been reviewed. Silver was found to be the best sheath material, since no reaction layer was observed between the silver sheath and the superconducting core. The grain connectivity of iron pnictide wires and tapes has been markedly improved by employing Ag or Pb as dopants. At present, critical current densities in excess of 3750 A /cm 2 (I c = 37.5 A) at 4.2 K have been achieved in Ag-sheathed SrKFeAs wires prepared with the above techniques, which is the highest value obtained in iron-based wires and tapes so far. Moreover, Ag-sheathed Sm-1111 superconducting tapes were successfully prepared by PIT method at temperatures as low as ̃ 900 °C, instead of commonly used temperatures of ̃ 1200 °C. These results demonstrate the feasibility of producing superconducting pnictide composite wires, even grain boundary properties require much more attention. © 2010 IEEE.

AB - The development of PIT fabrication process of iron pnictide superconducting wires and tapes has been reviewed. Silver was found to be the best sheath material, since no reaction layer was observed between the silver sheath and the superconducting core. The grain connectivity of iron pnictide wires and tapes has been markedly improved by employing Ag or Pb as dopants. At present, critical current densities in excess of 3750 A /cm 2 (I c = 37.5 A) at 4.2 K have been achieved in Ag-sheathed SrKFeAs wires prepared with the above techniques, which is the highest value obtained in iron-based wires and tapes so far. Moreover, Ag-sheathed Sm-1111 superconducting tapes were successfully prepared by PIT method at temperatures as low as ̃ 900 °C, instead of commonly used temperatures of ̃ 1200 °C. These results demonstrate the feasibility of producing superconducting pnictide composite wires, even grain boundary properties require much more attention. © 2010 IEEE.

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Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes

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