Estimation of generated heat in pulse field magnetizing for SmBaCuO bulk superconductor

被引：25
作者：
Fujishiro, H
Yokoyama, K
Kaneyama, M
Oka, T
Noto, K
机构：
[1] Iwate Univ, Fac Engn, Morioka, Iwate 0208551, Japan
[2] Iwate Ind Promot Ctr, Morioka, Iwate 020852, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 412卷
关键词：
pulse field magnetizing; heat generation; specific heat; pinning and viscous loss; SmBaCuO;
D O I：
10.1016/j.physc.2004.01.083
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 DeltaT(max) and specific heat C(T). Five successive magnetic pulses with a fixed amplitude (B-ex = 3.01 T similar to 5.42 T) are applied and DeltaT(max) are measured for the various initial temperature T-s between 40 and 70 K. Q has shown characteristic dependences on T-s, B-ex and the pulse number of the successive pulses. The pinning loss (Q(p)) and viscous loss (Q(v)) have been separated and estimated as a function of T-s and B-ex. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：646 / 650
页数：5
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