Abstract
In this study, we attempt to improve the trapped magnetic field by pulsed-field magnetization using REBCO bulk with small holes processed artificially. In our previous study, a hole was opened in the growth sector region (GSR) in accordance with the idea that the performance of the growth sector boundary (GSB) was not reduced because the critical current density of the GSB was higher than that of the GSR. In the next study, a small hole was processed on the GSB to decrease the magnetic shield toward the magnetic flux that entered through the GSB. The experimental results suggested that placing a hole on the GSB was advantageous to trapped field performance as compared with placing a hole at the GSR. In this paper, three more holes were processed in the bulk with a single hole on the GSB, and trapped field performance was investigated. Although the performance was decreased overall in the bulk with four holes, we confirmed that the peak value of total magnetic flux shifted to the low applied magnetic field, although the maximum value was almost the same as that of the bulk with a single hole.
| Original language | English |
|---|---|
| Article number | 012050 |
| Journal | Journal of Physics: Conference Series |
| Volume | 871 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2017 Jul 26 |
| Externally published | Yes |
| Event | 29th International Symposium on Superconductivity, ISS 2016 - Tokyo, Japan Duration: 2016 Dec 13 → 2016 Dec 15 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Influence of Artificial Defects on Trapped Field Performance in a Superconducting Bulk Magnet. / Yokoyama, K.; Eranda, K.; Zhao, Y.; Katsuki, A.; Miura, A.; Oka, Tetsuo.
In: Journal of Physics: Conference Series, Vol. 871, No. 1, 012050, 26.07.2017.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Influence of Artificial Defects on Trapped Field Performance in a Superconducting Bulk Magnet
AU - Yokoyama, K.
AU - Eranda, K.
AU - Zhao, Y.
AU - Katsuki, A.
AU - Miura, A.
AU - Oka, Tetsuo
PY - 2017/7/26
Y1 - 2017/7/26
N2 - In this study, we attempt to improve the trapped magnetic field by pulsed-field magnetization using REBCO bulk with small holes processed artificially. In our previous study, a hole was opened in the growth sector region (GSR) in accordance with the idea that the performance of the growth sector boundary (GSB) was not reduced because the critical current density of the GSB was higher than that of the GSR. In the next study, a small hole was processed on the GSB to decrease the magnetic shield toward the magnetic flux that entered through the GSB. The experimental results suggested that placing a hole on the GSB was advantageous to trapped field performance as compared with placing a hole at the GSR. In this paper, three more holes were processed in the bulk with a single hole on the GSB, and trapped field performance was investigated. Although the performance was decreased overall in the bulk with four holes, we confirmed that the peak value of total magnetic flux shifted to the low applied magnetic field, although the maximum value was almost the same as that of the bulk with a single hole.
AB - In this study, we attempt to improve the trapped magnetic field by pulsed-field magnetization using REBCO bulk with small holes processed artificially. In our previous study, a hole was opened in the growth sector region (GSR) in accordance with the idea that the performance of the growth sector boundary (GSB) was not reduced because the critical current density of the GSB was higher than that of the GSR. In the next study, a small hole was processed on the GSB to decrease the magnetic shield toward the magnetic flux that entered through the GSB. The experimental results suggested that placing a hole on the GSB was advantageous to trapped field performance as compared with placing a hole at the GSR. In this paper, three more holes were processed in the bulk with a single hole on the GSB, and trapped field performance was investigated. Although the performance was decreased overall in the bulk with four holes, we confirmed that the peak value of total magnetic flux shifted to the low applied magnetic field, although the maximum value was almost the same as that of the bulk with a single hole.
UR - http://www.scopus.com/inward/record.url?scp=85027985866&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027985866&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/871/1/012050
DO - 10.1088/1742-6596/871/1/012050
M3 - Conference article
VL - 871
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012050
ER -