Magnetic flux penetration of commercial Bi2223 wires evaluated by magneto-optical imaging

被引：4

作者：

Akiyama, H. ^{[1
]}

Tsuchiya, Y. ^{[1
]}

Pyon, S. ^{[1
]}

Tamegai, T. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2014年 / 504卷

关键词：

Bi2223; Superconducting wires; Critical current density; Magneto-optical imaging; TAPES; TRANSPORT;

D O I：

10.1016/j.physc.2014.03.014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have evaluated magnetic field penetrations into commercial Bi2223 wires fabricated by high-pressure sintering process. Magneto-optical imaging with high-spatial resolution has been applied for that purpose. It is found that there are inhomogeneous couplings between filaments, which can lead to inhomogeneous and complicated current flow in the wire. We also found defects running oblique to the filaments, possibly created during the rolling process of the wire. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：65 / 68

页数：4

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