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

研究成果: Conference article › 査読

7 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	3242-3245
ページ数	4
ジャーナル	IEEE Transactions on Applied Superconductivity
巻	11
号	1 III
DOI	https://doi.org/10.1109/77.919754
出版ステータス	Published - 2001 3
外部発表	はい
イベント	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States 継続期間: 2000 9 17 → 2000 9 22

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

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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",

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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

M3 - Conference article

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EP - 3245

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

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

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