TY - JOUR
T1 - Estimation of generated heat in pulse field magnetizing for SmBaCuO bulk superconductor
AU - Fujishiro, Hiroyuki
AU - Yokoyama, Kazuya
AU - Kaneyama, Masahiko
AU - Oka, Tetsuo
AU - Noto, Koshichi
N1 - Funding Information:
The authors greatly thank Prof. M. Ikebe of Iwate University for valuable suggestions and Dr. J. Hejetmanek of Institute of Physics, Academy Science of Czech Republic for the specific heat measurement. This work is partially supported 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 - 2004/10
Y1 - 2004/10
N2 - The generated heat Q during the pulse field magnetizing (PFM) has been estimated for a cryo-cooled SmBaCuO bulk superconductor based on the maximum temperature rise ΔTmax and specific heat C(T). Five successive magnetic pulses with a fixed amplitude (Bex=3.01 T ∼ 5.42 T) are applied and ΔTmax are measured for the various initial temperature Ts between 40 and 70 K. Q has shown characteristic dependences on Ts,Bex and the pulse number of the successive pulses. The pinning loss (Qp) and viscous loss (Q v) have been separated and estimated as a function of Ts and Bex.
AB - The generated heat Q during the pulse field magnetizing (PFM) has been estimated for a cryo-cooled SmBaCuO bulk superconductor based on the maximum temperature rise ΔTmax and specific heat C(T). Five successive magnetic pulses with a fixed amplitude (Bex=3.01 T ∼ 5.42 T) are applied and ΔTmax are measured for the various initial temperature Ts between 40 and 70 K. Q has shown characteristic dependences on Ts,Bex and the pulse number of the successive pulses. The pinning loss (Qp) and viscous loss (Q v) have been separated and estimated as a function of Ts and Bex.
KW - Heat generation
KW - Pinning and viscous loss
KW - Pulse field magnetizing
KW - SmBaCuO
KW - Specific heat
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U2 - 10.1016/j.physc.2004.01.083
DO - 10.1016/j.physc.2004.01.083
M3 - Article
AN - SCOPUS:4644288510
VL - 412-414
SP - 646
EP - 650
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SPEC. ISS.
ER -