Field dependence of the critical current density of MgB2 conductors between 4.2 K and 30 K up to 20 T

L. Arda; M. Ozdemir; Y. Akin; S. Aktas; M. Tomsic; Y. S. Hascicek

doi:10.1109/TASC.2005.848852

Field dependence of the critical current density of MgB₂ conductors between 4.2 K and 30 K up to 20 T

L. Arda, M. Ozdemir, Y. Akin, S. Aktas, M. Tomsic, Y. S. Hascicek

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

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Abstract

The critical current density (J_c) of the monofilament Monel/Fe/MgB₂ wire was measured between 4.2 K and 30 K with a Variable Temperature Insert (VTI) in a 20 T superconducting magnet using the analog DC pulse four-wire method with 1 μv/cm criterion. The critical current density, J_c was measured to be 0.16 × 10⁵ A/cm ² at 4 T at 21 K for a MgB₂ sample which was annealed at 700°C for 5 min and at 900°C for 5 min under Ar gas flow. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the microstructure of the samples.

Original language	English
Pages (from-to)	3281-3283
Number of pages	3
Journal	IEEE Transactions on Applied Superconductivity
Volume	15
Issue number	2 PART III
DOIs	https://doi.org/10.1109/TASC.2005.848852
Publication status	Published - Jun 2005
Externally published	Yes

Keywords

Critical current density
Iron cladding
MgB superconductors
Si doping
Superconducting wire

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10.1109/TASC.2005.848852

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title = "Field dependence of the critical current density of MgB2 conductors between 4.2 K and 30 K up to 20 T",

abstract = "The critical current density (Jc) of the monofilament Monel/Fe/MgB2 wire was measured between 4.2 K and 30 K with a Variable Temperature Insert (VTI) in a 20 T superconducting magnet using the analog DC pulse four-wire method with 1 μv/cm criterion. The critical current density, Jc was measured to be 0.16 × 105 A/cm 2 at 4 T at 21 K for a MgB2 sample which was annealed at 700°C for 5 min and at 900°C for 5 min under Ar gas flow. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the microstructure of the samples.",

keywords = "Critical current density, Iron cladding, MgB superconductors, Si doping, Superconducting wire",

author = "L. Arda and M. Ozdemir and Y. Akin and S. Aktas and M. Tomsic and Hascicek, {Y. S.}",

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T1 - Field dependence of the critical current density of MgB2 conductors between 4.2 K and 30 K up to 20 T

AU - Arda, L.

AU - Ozdemir, M.

AU - Akin, Y.

AU - Aktas, S.

AU - Tomsic, M.

AU - Hascicek, Y. S.

PY - 2005/6

Y1 - 2005/6

N2 - The critical current density (Jc) of the monofilament Monel/Fe/MgB2 wire was measured between 4.2 K and 30 K with a Variable Temperature Insert (VTI) in a 20 T superconducting magnet using the analog DC pulse four-wire method with 1 μv/cm criterion. The critical current density, Jc was measured to be 0.16 × 105 A/cm 2 at 4 T at 21 K for a MgB2 sample which was annealed at 700°C for 5 min and at 900°C for 5 min under Ar gas flow. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the microstructure of the samples.

AB - The critical current density (Jc) of the monofilament Monel/Fe/MgB2 wire was measured between 4.2 K and 30 K with a Variable Temperature Insert (VTI) in a 20 T superconducting magnet using the analog DC pulse four-wire method with 1 μv/cm criterion. The critical current density, Jc was measured to be 0.16 × 105 A/cm 2 at 4 T at 21 K for a MgB2 sample which was annealed at 700°C for 5 min and at 900°C for 5 min under Ar gas flow. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the microstructure of the samples.

KW - Critical current density

KW - Iron cladding

KW - MgB superconductors

KW - Si doping

KW - Superconducting wire

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 PART III

ER -

Field dependence of the critical current density of MgB₂ conductors between 4.2 K and 30 K up to 20 T

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Keywords

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