TY - JOUR
T1 - Approach from temperature measurement to trapped field enhancement in HTSC bulks by pulse field magnetizing
AU - Fujishiro, Hiroyuki
AU - Yokoyama, Kazuya
AU - Kaneyama, Masahiko
AU - Ikebe, Manabu
AU - Oka, Tetsuo
AU - Noto, Koshichi
N1 - Funding Information:
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”.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - The time dependences of the temperature rise ΔT(t) and the magnetization M(t) on the surface of the cryo-cooled SmBaCuO bulk superconductor have been investigated during the five successive magnetic pulse applications (No1-No5) of equal strength ranging from Bex = 3.83-6.07 T. The pinning loss (Qp) is estimated by the hysteresis loss QMH obtained by the M vs. applied field μ0Ha curve and the viscous loss (Qv) is estimated by subtracting QMH from the total Q which is estimated using the maximum temperature rise ΔT max and the specific heat C. For the first pulse (No1) application, Qp is a main origin of the heat generation and Qv is dominant for the No5 pulse. The temperature measurements combined with the measurements of the M-μ0Ha curve have been proved to give us the valuable information as for the enhancement of the trapped field by PFM.
AB - The time dependences of the temperature rise ΔT(t) and the magnetization M(t) on the surface of the cryo-cooled SmBaCuO bulk superconductor have been investigated during the five successive magnetic pulse applications (No1-No5) of equal strength ranging from Bex = 3.83-6.07 T. The pinning loss (Qp) is estimated by the hysteresis loss QMH obtained by the M vs. applied field μ0Ha curve and the viscous loss (Qv) is estimated by subtracting QMH from the total Q which is estimated using the maximum temperature rise ΔT max and the specific heat C. For the first pulse (No1) application, Qp is a main origin of the heat generation and Qv is dominant for the No5 pulse. The temperature measurements combined with the measurements of the M-μ0Ha curve have been proved to give us the valuable information as for the enhancement of the trapped field by PFM.
KW - Heat generation
KW - Hysteresis loss
KW - Pinning and viscous loss
KW - Pulse field magnetizing
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U2 - 10.1016/j.physc.2005.05.023
DO - 10.1016/j.physc.2005.05.023
M3 - Conference article
AN - SCOPUS:25644457530
VL - 426-431
SP - 594
EP - 601
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - I
T2 - Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity
Y2 - 23 November 2004 through 25 November 2004
ER -