Magneto-optical investigations as a tool to improve quality of (Pb,Bi)-2223 tapes

M. R. Koblischka; W. G. Wang; B. Seifi; P. Skov-Hansen; P. Vase; N. H. Andersen

doi:10.1109/77.919754

Magneto-optical investigations as a tool to improve quality of (Pb,Bi)-2223 tapes

M. R. Koblischka, W. G. Wang, B. Seifi, P. Skov-Hansen, P. Vase, N. H. Andersen

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

7 Citations (Scopus)

Abstract

Flux distributions of multifilamentary (Pb,Bi)-2223 tapes are investigated by magneto-optic (MO) imaging at T = 10K and in different field orientations. This enables to study differences between the individual filaments in a direct way. To our knowledge we have for the first time applied the field perpendicular to a cross section of an intact tape, i.e. the external field is aligned along the individual filaments. This geometry of the MO experiments enables the study of the superconducting properties of the filaments as a function of position in the tape. The flux patterns reveal the shielding properties (= critical current density) of the filaments; and the studies clearly show differences in the superconducting properties between the different filaments. Our observations provide therefore important informations for further development of the (Pb,Bi)-2223 tapes.

Original language	English
Pages (from-to)	3242-3245
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 III
DOIs	https://doi.org/10.1109/77.919754
Publication status	Published - 2001 Mar
Externally published	Yes
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sept 17 → 2000 Sept 22

Keywords

(Pb,Bi)-2223 tapes
Critical current density
Cross sections
Flux distributions
MO imaging

ASJC Scopus subject areas

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

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10.1109/77.919754

Cite this

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title = "Magneto-optical investigations as a tool to improve quality of (Pb,Bi)-2223 tapes",

abstract = "Flux distributions of multifilamentary (Pb,Bi)-2223 tapes are investigated by magneto-optic (MO) imaging at T = 10K and in different field orientations. This enables to study differences between the individual filaments in a direct way. To our knowledge we have for the first time applied the field perpendicular to a cross section of an intact tape, i.e. the external field is aligned along the individual filaments. This geometry of the MO experiments enables the study of the superconducting properties of the filaments as a function of position in the tape. The flux patterns reveal the shielding properties (= critical current density) of the filaments; and the studies clearly show differences in the superconducting properties between the different filaments. Our observations provide therefore important informations for further development of the (Pb,Bi)-2223 tapes.",

keywords = "(Pb,Bi)-2223 tapes, Critical current density, Cross sections, Flux distributions, MO imaging",

author = "Koblischka, {M. R.} and Wang, {W. G.} and B. Seifi and P. Skov-Hansen and P. Vase and Andersen, {N. H.}",

note = "Funding Information: The authors would like to thank B. H. Larsen and S. Nielsen (Risca) for their efforts to set up the MO system. Support from the Danish Technical Science Research Council and the Danish Energy Agency is gratefully acknowledged.; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

year = "2001",

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doi = "10.1109/77.919754",

language = "English",

volume = "11",

pages = "3242--3245",

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TY - JOUR

T1 - Magneto-optical investigations as a tool to improve quality of (Pb,Bi)-2223 tapes

AU - Koblischka, M. R.

AU - Wang, W. G.

AU - Seifi, B.

AU - Skov-Hansen, P.

AU - Vase, P.

AU - Andersen, N. H.

N1 - Funding Information: The authors would like to thank B. H. Larsen and S. Nielsen (Risca) for their efforts to set up the MO system. Support from the Danish Technical Science Research Council and the Danish Energy Agency is gratefully acknowledged.

PY - 2001/3

Y1 - 2001/3

N2 - Flux distributions of multifilamentary (Pb,Bi)-2223 tapes are investigated by magneto-optic (MO) imaging at T = 10K and in different field orientations. This enables to study differences between the individual filaments in a direct way. To our knowledge we have for the first time applied the field perpendicular to a cross section of an intact tape, i.e. the external field is aligned along the individual filaments. This geometry of the MO experiments enables the study of the superconducting properties of the filaments as a function of position in the tape. The flux patterns reveal the shielding properties (= critical current density) of the filaments; and the studies clearly show differences in the superconducting properties between the different filaments. Our observations provide therefore important informations for further development of the (Pb,Bi)-2223 tapes.

AB - Flux distributions of multifilamentary (Pb,Bi)-2223 tapes are investigated by magneto-optic (MO) imaging at T = 10K and in different field orientations. This enables to study differences between the individual filaments in a direct way. To our knowledge we have for the first time applied the field perpendicular to a cross section of an intact tape, i.e. the external field is aligned along the individual filaments. This geometry of the MO experiments enables the study of the superconducting properties of the filaments as a function of position in the tape. The flux patterns reveal the shielding properties (= critical current density) of the filaments; and the studies clearly show differences in the superconducting properties between the different filaments. Our observations provide therefore important informations for further development of the (Pb,Bi)-2223 tapes.

KW - (Pb,Bi)-2223 tapes

KW - Critical current density

KW - Cross sections

KW - Flux distributions

KW - MO imaging

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DO - 10.1109/77.919754

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SN - 1051-8223

VL - 11

SP - 3242

EP - 3245

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 1 III

T2 - 2000 Applied Superconductivity Conference

Y2 - 17 September 2000 through 22 September 2000

ER -

Magneto-optical investigations as a tool to improve quality of (Pb,Bi)-2223 tapes

Abstract

Keywords

ASJC Scopus subject areas

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