DC and AC self-magnetic field profiles of (6+1) filamentary BSCCO tapes with different filament arrangements measured by Hall probe magnetometry

Kvitkovič, J.; Majoroš, M.; Apperley, M.

doi:10.1016/s0921-4534(01)00933-9

Physica C: Superconductivity

2002

DOI: 10.1016/s0921-4534(01)00933-9

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DC and AC self-magnetic field profiles of (6+1) filamentary BSCCO tapes with different filament arrangements measured by Hall probe magnetometry

J. Kvitkovič¹,

M. Majoroš²,

M. Apperley³

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Cited by 2 publications

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“…Comparision of DC and AC self-magnetic field profiles (B x , B z ) for YBCO superconducting tape surface at DC 20-70 A and AC 20-70 A peak . B x (6) dB/dt (7) dB/dt 5.…”

mentioning

confidence: 99%

The Transport Characteristics and the Self-field Distribution for High-Tc Superconductor with Neighboring Magnetic Materials

Joo

Kim²,

Murase

2007

IEEJ Trans. PE

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Many high-Tc superconducting HTS tape manufactures make an effort to improve the transport characteristics of HTS tapes. The AC loss and the critical current are important parameters to evaluate the economic feasibility of HTS tapes in power applications. When AC or DC current flows in the HTS tape, AC or DC magnetic self-fields are induced around the conductor by the current and these self-fields affect on the AC loss and the critical current like the transport characteristics of HTS tapes.YBCO tape has a Ni alloy substrate indicated weak ferromagnetic material, and it is expected that the spatial distribution and magnitude of the self-field are variable due to the neighboring materials on the HTS tape.In this paper, the relation between the transport characteristics and the self-field distribution of HTS tapes with paralleled ferromagnetic material (Ni tape) and/or diamagnetic material (BSCCO tape) is experimentally investigated. The self-fields according to the DC and AC transport currents were measured by hall probe with axial and radial magnetic field components.The critical currents of HTS tapes with paralleled the Ni tape are slightly decreased and the transport current losses markedly increased. However, the critical currents and transport current losses of HTS tapes with paralleled BSCCO tape showed more improved performance than those of single HTS tape.We explain these results using the change of the spatial distribution and magnitude of self-field on HTS tapes by the neighboring magnetic materials. Mainly, the transport characteristics of HTS tapes depends on the change of the axial field components on HTS tapes by the neighboring magnetic materials.-38 -

show abstract

“…Comparision of DC and AC self-magnetic field profiles (B x , B z ) for YBCO superconducting tape surface at DC 20-70 A and AC 20-70 A peak . B x (6) dB/dt (7) dB/dt 5.…”

mentioning

confidence: 99%

The Transport Characteristics and the Self-field Distribution for High-Tc Superconductor with Neighboring Magnetic Materials

Joo

Kim²,

Murase

2007

IEEJ Trans. PE

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show abstract

Magnetic flux density maps caused by DC, AC and remanence currents around artificial defects in Bi-2223/Ag tapes

Masti

Lehtonen

Perala

et al. 2003

Physica C: Superconductivity

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DC and AC self-magnetic field profiles of (6+1) filamentary BSCCO tapes with different filament arrangements measured by Hall probe magnetometry

Cited by 2 publications

References 12 publications

The Transport Characteristics and the Self-field Distribution for High-Tc Superconductor with Neighboring Magnetic Materials

The Transport Characteristics and the Self-field Distribution for High-Tc Superconductor with Neighboring Magnetic Materials

Magnetic flux density maps caused by DC, AC and remanence currents around artificial defects in Bi-2223/Ag tapes

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