AC magnetic losses in Bi-2223/Ag tapes with different aspect ratios

被引：1
|
作者：
Fang, J [1 ]
Luo, XM
Chen, DX
Collings, EW
Lee, E
Sumption, MD
Alamgir, AKM
Yi, HP
Fang, JG
Gu, C
Guo, SQ
Liu, ML
Xin, Y
Han, Z
机构：
[1] Tsing Hua Univ, Dept Phys, Appl Superconduct Res Ctr, Beijing 100084, Peoples R China
[2] Univ Autonoma Barcelona, Dept Fis, ICREA, Bellaterra 08193, Spain
[3] Univ Autonoma Barcelona, Dept Fis, Grp Electromagnetisme, Bellaterra 08193, Spain
[4] Ohio State Univ, MSE, Columbus, OH 43210 USA
[5] Innopower Superconductor Cable Co Ltd, Beijing Econ & Technol Dev Area, Beijing 100176, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 412卷
关键词：
magnetic loss; Bi(2223)/Ag tapes; aspect ratio; full penetration field; decay time constant of coupling current;
D O I：
10.1016/j.physc.2004.01.136
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
AC losses in multi-filamentary tapes depend on various parameters. Among them, the overall tape width and thickness are expected to have ail important influence. In order to study this geometrical effect, five Bi-2223/Ag tapes with different aspect ratios from 5 to 26 have been prepared. AC losses have been measured at 77 K when a perpendicular AC magnetic field is applied. It has been found that at any frequencies the magnetic loss per cycle increases as the aspect ratio increases. For AC magnetic loss, with increasing frequency from 3 to 9000 Hz the losses as a function of frequency show a maximum if the field amplitude is much less than the full penetration field or increase continuously if the field amplitude is larger. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1134 / 1138
页数：5
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