TY - JOUR
T1 - Effect of metal ring setting outside HTSC bulk disk on trapped field and temperature rise in pulse field magnetizing
AU - Fujishiro, Hiroyuki
AU - Yokoyama, Kazuya
AU - Kaneyama, Masahiko
AU - Oka, Tetsuo
AU - Noto, Koshichi
N1 - Funding Information:
Manuscript received October 3, 2004. This work was supported in part by Japan Science and Technology Corporation under the Joint-research Project for Regional Intensive in the Iwate Prefecture on Development of practical applications of magnetic field technology for use in the region and in everyday living.
PY - 2005/6
Y1 - 2005/6
N2 - In order to enhance the trapped field in cryo-cooled HTSC bulks using pulse field magnetizing (PFM), a metal ring (stainless steel 304 and/or Al) has been tightly set onto the SmBaCuO bulk disk and the relation between the total trapped flux Φ TP, the trapped field B T P, and the temperature rise ΔT, has been investigated as a function of the applied pulse field B ex. The Φ T P and B T P values are enhanced about 10-20% by the metal ring due to the reduction in the temperature rise AT. These results suggest that a part of the generated heat Q due to the flux motion in the peripheral region promptly transfers to the metal ring and the heat transfer to the cold stage is improved by the ring setting.
AB - In order to enhance the trapped field in cryo-cooled HTSC bulks using pulse field magnetizing (PFM), a metal ring (stainless steel 304 and/or Al) has been tightly set onto the SmBaCuO bulk disk and the relation between the total trapped flux Φ TP, the trapped field B T P, and the temperature rise ΔT, has been investigated as a function of the applied pulse field B ex. The Φ T P and B T P values are enhanced about 10-20% by the metal ring due to the reduction in the temperature rise AT. These results suggest that a part of the generated heat Q due to the flux motion in the peripheral region promptly transfers to the metal ring and the heat transfer to the cold stage is improved by the ring setting.
KW - High T bulk superconductors
KW - Metal ring setting
KW - Pinning and viscous loss
KW - Pulse field magnetizing
KW - Temperature measurement
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U2 - 10.1109/TASC.2005.849425
DO - 10.1109/TASC.2005.849425
M3 - Article
AN - SCOPUS:22144438668
SN - 1051-8223
VL - 15
SP - 3762
EP - 3765
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2 PART III
ER -