The new resistance jump: The detection of damage in Nb barrier in MgB2 wires

被引：2

作者：

Gajda, Daniel ^{[1
]}

Morawski, Andrzej ^{[2
]}

Zaleski, Andrzej Janusz ^{[3
]}

Rindfleisch, Matthew A. ^{[4
]}

Thong, Chee ^{[4
]}

Tomsic, Michael ^{[4
]}

Hossain, Md Shahriar ^{[5
]}

Cetner, Tomasz ^{[2
]}

机构：

[1] Int Lab High Magnet Fields & Low Temp, PL-53421 Wroclaw, Poland

[2] Polish Acad Sci, Inst High Pressure Phys, PL-01142 Warsaw, Poland

[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

[4] Hyper Tech Res Inc, Columbus, OH 43228 USA

[5] Univ Wollongong, AIIM, Inst Superconducting & Elect Mat, North Wollongong, NSW 2519, Australia

来源：

MATERIALS LETTERS | 2015年 / 160卷

基金：

澳大利亚研究理事会;

关键词：

Magnesium diboride; Damage detection; Critical current; HIGH GAS-PRESSURE; SUPERCONDUCTORS; TEMPERATURE; MAGNESIUM;

D O I：

10.1016/j.matlet.2015.07.076

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a new method for detecting damage to Nb barriers in MgB2 wires by using a four-contact probe. The transport measurements and scanning electron microscope images indicate that a newly identified jump in resistance means that there is damage to the Nb barrier. Damage detection is important for application because it allows us to avoid reactions between the filament and the sheath material, and to develop implementation methods for MgB2 with high critical current density. Our methods for damage detection proposed in this paper are simple, fast, and easy to use. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：81 / 84

页数：4

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