High Ic in iron-clad MgB2 tape

H. Fang; S. Padmanabhan; Y. X. Zhou; P. T. Putman; K. Salama

doi:10.1109/TASC.2003.812199

High I_c in iron-clad MgB₂ tape

H. Fang, S. Padmanabhan, Y. X. Zhou, P. T. Putman, K. Salama

Diagnostic Radiology

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Recent studies on metal-clad superconducting MgB₂ wires indicates that iron is one of the best candidates as a cladding metal. Also it was found that grain refinement of MgB₂ leads to more compacted material which yields high transport critical current density. In this study, we prepared the iron-clad MgB₂ tapes by using the powder-in-tube technique. A modified rolling process was applied to cold work the powder-filled tubes into tapes. Very fine grains were observed on as-rolled tapes. Tapes manufactured using this process were found to carry 260 Ampere at 20 K under self-field and 180 Ampere under 1.5 Tesla. The transition temperature is 39.4 K and ΔT = 0.6 K. The results indicate that grain refinement is very effective in improving the current carrying capability of the MgB₂ tapes.

Original language	English (US)
Pages (from-to)	3207-3209
Number of pages	3
Journal	IEEE Transactions on Applied Superconductivity
Volume	13
Issue number	2 III
DOIs	https://doi.org/10.1109/TASC.2003.812199
State	Published - Jun 2003
Event	2002 Applied Superconductivity Conference - Houston, TX, United States Duration: Aug 4 2002 → Aug 9 2002

Keywords

Critical current
Magnesium diboride
Powder-in-tube
Superconducting tape

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2003.812199

Cite this

@article{4a63344d9eb442f48fbf462958ce2d70,

title = "High Ic in iron-clad MgB2 tape",

abstract = "Recent studies on metal-clad superconducting MgB2 wires indicates that iron is one of the best candidates as a cladding metal. Also it was found that grain refinement of MgB2 leads to more compacted material which yields high transport critical current density. In this study, we prepared the iron-clad MgB2 tapes by using the powder-in-tube technique. A modified rolling process was applied to cold work the powder-filled tubes into tapes. Very fine grains were observed on as-rolled tapes. Tapes manufactured using this process were found to carry 260 Ampere at 20 K under self-field and 180 Ampere under 1.5 Tesla. The transition temperature is 39.4 K and ΔT = 0.6 K. The results indicate that grain refinement is very effective in improving the current carrying capability of the MgB2 tapes.",

keywords = "Critical current, Magnesium diboride, Powder-in-tube, Superconducting tape",

author = "H. Fang and S. Padmanabhan and Zhou, {Y. X.} and Putman, {P. T.} and K. Salama",

note = "Funding Information: Manuscript received August 6, 2002. This work was supported by the state of Texas through the Texas Center for Superconductivity and Advanced Materials, University of Houston.; 2002 Applied Superconductivity Conference ; Conference date: 04-08-2002 Through 09-08-2002",

year = "2003",

month = jun,

doi = "10.1109/TASC.2003.812199",

language = "English (US)",

volume = "13",

pages = "3207--3209",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "2 III",

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TY - JOUR

T1 - High Ic in iron-clad MgB2 tape

AU - Fang, H.

AU - Padmanabhan, S.

AU - Zhou, Y. X.

AU - Putman, P. T.

AU - Salama, K.

N1 - Funding Information: Manuscript received August 6, 2002. This work was supported by the state of Texas through the Texas Center for Superconductivity and Advanced Materials, University of Houston.

PY - 2003/6

Y1 - 2003/6

N2 - Recent studies on metal-clad superconducting MgB2 wires indicates that iron is one of the best candidates as a cladding metal. Also it was found that grain refinement of MgB2 leads to more compacted material which yields high transport critical current density. In this study, we prepared the iron-clad MgB2 tapes by using the powder-in-tube technique. A modified rolling process was applied to cold work the powder-filled tubes into tapes. Very fine grains were observed on as-rolled tapes. Tapes manufactured using this process were found to carry 260 Ampere at 20 K under self-field and 180 Ampere under 1.5 Tesla. The transition temperature is 39.4 K and ΔT = 0.6 K. The results indicate that grain refinement is very effective in improving the current carrying capability of the MgB2 tapes.

AB - Recent studies on metal-clad superconducting MgB2 wires indicates that iron is one of the best candidates as a cladding metal. Also it was found that grain refinement of MgB2 leads to more compacted material which yields high transport critical current density. In this study, we prepared the iron-clad MgB2 tapes by using the powder-in-tube technique. A modified rolling process was applied to cold work the powder-filled tubes into tapes. Very fine grains were observed on as-rolled tapes. Tapes manufactured using this process were found to carry 260 Ampere at 20 K under self-field and 180 Ampere under 1.5 Tesla. The transition temperature is 39.4 K and ΔT = 0.6 K. The results indicate that grain refinement is very effective in improving the current carrying capability of the MgB2 tapes.

KW - Critical current

KW - Magnesium diboride

KW - Powder-in-tube

KW - Superconducting tape

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