抄録
Pulsed-field magnetization is a useful magnetization technique for high-temperature superconductivity bulk crystals for practical applications. However, the trapped magnetic flux is reduced due to the temperature increase from the mobile flux, and the distribution of the flux density is considerably distorted in the a-b crystallographic axes plane. We present two proposals to improve the trapped magnetic flux and its distribution upon pulsed-field magnetization. Firstly, split-type vortex pulsed copper coils with diameters smaller than that of the bulk disk. Secondly, two HTS bulks are stacked layered with misalignment of their crystal a-b axes to reduce the flux motion in the four-fold growth sectors, since the critical current density Jc in the growth sectors is lower. Combining these techniques, the decayed trapped field distribution was recovered and the total flux was increased up to 30% in comparison with a conventional pulsed-field magnetization.
| 元の言語 | English |
|---|---|
| ジャーナル | Superconductor Science and Technology |
| 巻 | 19 |
| 発行部数 | 7 |
| DOI | |
| 出版物ステータス | Published - 2006 7 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry
これを引用
Recovery of trapped field distribution around a growth sector in a Gd-Ba-Cu-O HTS bulk with pulsed-field magnetization. / Kimura, Y.; Matsuzaki, H.; Ohtani, I.; Morita, E.; Izumi, M.; Sakai, Naomichi; Hirabayashi, I.; Miki, M.; Kitano, M.; Ida, T.
：: Superconductor Science and Technology, 巻 19, 番号 7, 01.07.2006.研究成果: Article
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TY - JOUR
T1 - Recovery of trapped field distribution around a growth sector in a Gd-Ba-Cu-O HTS bulk with pulsed-field magnetization
AU - Kimura, Y.
AU - Matsuzaki, H.
AU - Ohtani, I.
AU - Morita, E.
AU - Izumi, M.
AU - Sakai, Naomichi
AU - Hirabayashi, I.
AU - Miki, M.
AU - Kitano, M.
AU - Ida, T.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - Pulsed-field magnetization is a useful magnetization technique for high-temperature superconductivity bulk crystals for practical applications. However, the trapped magnetic flux is reduced due to the temperature increase from the mobile flux, and the distribution of the flux density is considerably distorted in the a-b crystallographic axes plane. We present two proposals to improve the trapped magnetic flux and its distribution upon pulsed-field magnetization. Firstly, split-type vortex pulsed copper coils with diameters smaller than that of the bulk disk. Secondly, two HTS bulks are stacked layered with misalignment of their crystal a-b axes to reduce the flux motion in the four-fold growth sectors, since the critical current density Jc in the growth sectors is lower. Combining these techniques, the decayed trapped field distribution was recovered and the total flux was increased up to 30% in comparison with a conventional pulsed-field magnetization.
AB - Pulsed-field magnetization is a useful magnetization technique for high-temperature superconductivity bulk crystals for practical applications. However, the trapped magnetic flux is reduced due to the temperature increase from the mobile flux, and the distribution of the flux density is considerably distorted in the a-b crystallographic axes plane. We present two proposals to improve the trapped magnetic flux and its distribution upon pulsed-field magnetization. Firstly, split-type vortex pulsed copper coils with diameters smaller than that of the bulk disk. Secondly, two HTS bulks are stacked layered with misalignment of their crystal a-b axes to reduce the flux motion in the four-fold growth sectors, since the critical current density Jc in the growth sectors is lower. Combining these techniques, the decayed trapped field distribution was recovered and the total flux was increased up to 30% in comparison with a conventional pulsed-field magnetization.
UR - http://www.scopus.com/inward/record.url?scp=33646780567&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646780567&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/19/7/S09
DO - 10.1088/0953-2048/19/7/S09
M3 - Article
AN - SCOPUS:33646780567
VL - 19
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 7
ER -