Abstract
We have investigated the influence of self-field on the critical current density distribution in a Bi-2223 tape and its effect on the current capacity of an assembled conductor. Critical current of a tape is usually measured by four-probe transport method under self-field. On the other hand, the critical current of an assembled conductor cannot be simply summed because the tape experiences different condition of magnetic field due to the interaction among the tapes. To quantify the situation, it is necessary to clarify first how the critical current of a tape is determined at the self-field and then to consider the interaction among the tapes. In this study, it was found that the distribution of critical current density was largely influenced by local magnetic field inside the tape. The results were quantitatively described by a model considering the position dependence and magnetic field dependence of local critical current density. Using such a quantitative model, we numerically investigated the current capacities of assembled conductors with different arrangements of the tapes.
| Original language | English |
|---|---|
| Article number | 6937130 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jun 1 2015 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Influence of internal magnetic field distribution on critical currents in a single and assembled Bi-2223 tapes. / Furukawa, Kazuki; Higashikawa, Kohei; Imado, Kosuke; Inoue, Masayoshi; Kikuchi, Masashi; Kobayashi, Shin Ichi; Nakashima, Takayoshi; Hayashi, Kazuhiko; Sato, Ken Ichi; Tomita, Masaru; Kiss, Takanobu.
In: IEEE Transactions on Applied Superconductivity, Vol. 25, No. 3, 6937130, 01.06.2015.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Influence of internal magnetic field distribution on critical currents in a single and assembled Bi-2223 tapes
AU - Furukawa, Kazuki
AU - Higashikawa, Kohei
AU - Imado, Kosuke
AU - Inoue, Masayoshi
AU - Kikuchi, Masashi
AU - Kobayashi, Shin Ichi
AU - Nakashima, Takayoshi
AU - Hayashi, Kazuhiko
AU - Sato, Ken Ichi
AU - Tomita, Masaru
AU - Kiss, Takanobu
PY - 2015/6/1
Y1 - 2015/6/1
N2 - We have investigated the influence of self-field on the critical current density distribution in a Bi-2223 tape and its effect on the current capacity of an assembled conductor. Critical current of a tape is usually measured by four-probe transport method under self-field. On the other hand, the critical current of an assembled conductor cannot be simply summed because the tape experiences different condition of magnetic field due to the interaction among the tapes. To quantify the situation, it is necessary to clarify first how the critical current of a tape is determined at the self-field and then to consider the interaction among the tapes. In this study, it was found that the distribution of critical current density was largely influenced by local magnetic field inside the tape. The results were quantitatively described by a model considering the position dependence and magnetic field dependence of local critical current density. Using such a quantitative model, we numerically investigated the current capacities of assembled conductors with different arrangements of the tapes.
AB - We have investigated the influence of self-field on the critical current density distribution in a Bi-2223 tape and its effect on the current capacity of an assembled conductor. Critical current of a tape is usually measured by four-probe transport method under self-field. On the other hand, the critical current of an assembled conductor cannot be simply summed because the tape experiences different condition of magnetic field due to the interaction among the tapes. To quantify the situation, it is necessary to clarify first how the critical current of a tape is determined at the self-field and then to consider the interaction among the tapes. In this study, it was found that the distribution of critical current density was largely influenced by local magnetic field inside the tape. The results were quantitatively described by a model considering the position dependence and magnetic field dependence of local critical current density. Using such a quantitative model, we numerically investigated the current capacities of assembled conductors with different arrangements of the tapes.
UR - http://www.scopus.com/inward/record.url?scp=84921506776&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921506776&partnerID=8YFLogxK
U2 - 10.1109/TASC.2014.2365415
DO - 10.1109/TASC.2014.2365415
M3 - Article
AN - SCOPUS:84921506776
VL - 25
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 6937130
ER -