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

Handle URI:
http://hdl.handle.net/10754/597706
Title:
Development of Powder-in-Tube Processed Iron Pnictide Wires and Tapes
Authors:
Ma, Yanwei; Wang, Lei; Qi, Yanpeng; Gao, Zhaoshun; Wang, Dongliang; Zhang, Xianping
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.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Applied Superconductivity
Issue Date:
Jun-2011
DOI:
10.1109/TASC.2010.2079311
Type:
Article
ISSN:
1051-8223; 1558-2515
Sponsors:
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.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorMa, Yanweien
dc.contributor.authorWang, Leien
dc.contributor.authorQi, Yanpengen
dc.contributor.authorGao, Zhaoshunen
dc.contributor.authorWang, Dongliangen
dc.contributor.authorZhang, Xianpingen
dc.date.accessioned2016-02-25T13:10:00Zen
dc.date.available2016-02-25T13:10:00Zen
dc.date.issued2011-06en
dc.identifier.issn1051-8223en
dc.identifier.issn1558-2515en
dc.identifier.doi10.1109/TASC.2010.2079311en
dc.identifier.urihttp://hdl.handle.net/10754/597706en
dc.description.abstractThe 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.en
dc.description.sponsorshipThe 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.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectAdditionen
dc.subjectAg sheathen
dc.subjectCritical currenten
dc.subjectGrain connectivityen
dc.subjectIron pnictidesen
dc.subjectWires and tapesen
dc.titleDevelopment of Powder-in-Tube Processed Iron Pnictide Wires and Tapesen
dc.typeArticleen
dc.identifier.journalIEEE Transactions on Applied Superconductivityen
dc.contributor.institutionInstitute of Electrical Engineering, Chinese Academy of Sciences, Beijing, Chinaen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.