Abstract
Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.
| Original language | English |
|---|---|
| Pages (from-to) | 343-347 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 484 |
| DOIs | |
| Publication status | Published - 2013 Jan 15 |
| Externally published | Yes |
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Keywords
- Flux flow
- Flux penetration
- Pulsed-field magnetization
- Small hole
- Superconducting bulk magnet
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
- Electronic, Optical and Magnetic Materials
Cite this
Pulsed-field magnetization of a bulk superconductor with small holes. / Yokoyama, K.; Oka, Tetsuo; Kondo, N.; Hosaka, S.
In: Physica C: Superconductivity and its Applications, Vol. 484, 15.01.2013, p. 343-347.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pulsed-field magnetization of a bulk superconductor with small holes
AU - Yokoyama, K.
AU - Oka, Tetsuo
AU - Kondo, N.
AU - Hosaka, S.
PY - 2013/1/15
Y1 - 2013/1/15
N2 - Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.
AB - Recent enlargement of the size and the performance enhancement of bulk superconductor lead to the difficulty of magnetic flux trapping by a pulsed-field magnetization. This paper proposes the bulk material with small holes which makes the role of an artificial magnetic flux path to supply the flux in the bulk. The fundamental experiment of applying a single pulsed-field with varying amplitudes was carried out using a ∅60 mm × 20 mm GdBa2Cu3O7-x bulk material with four ∅2 mm holes filled up with solder. Compared with a usual hole-less bulk, the total magnetic flux and the maximum trapped flux density were greatly increased in a low applied field. Moreover, those large reduction caused by flux flow was suppressed in a high applied field.
KW - Flux flow
KW - Flux penetration
KW - Pulsed-field magnetization
KW - Small hole
KW - Superconducting bulk magnet
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UR - http://www.scopus.com/inward/citedby.url?scp=84875680797&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2012.03.074
DO - 10.1016/j.physc.2012.03.074
M3 - Article
VL - 484
SP - 343
EP - 347
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
ER -