Power-Law Relationship Between Critical Current Density, Microstructure, and the n-Value in MgB2 Superconductor Wires

被引：7
|
作者：
Motaman, Ashkan [1 ]
Barua, Shaon [1 ]
Patel, Dipak [1 ]
Maeda, Minoru [2 ]
Cheong, Kookchae [3 ]
Kim, Jung Ho [1 ]
Dou, Shi Xue [1 ]
Al Hossain, M. Shahriar [1 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia
[2] Nihon Univ, Dept Phys, Coll Sci & Technol, Tokyo 1018308, Japan
[3] Korea Inst Mat Sci, Nano Funct Mat Grp, Gyeongnam 642831, South Korea
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2014年 / 27卷 / 07期
基金：
澳大利亚研究理事会;
关键词：
Magnesium diboride; Critical current density; Power law; n-Value;
D O I：
10.1007/s10948-014-2504-5
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Dissipation-free MgB2 superconducting wires are valuable in terms of practical applications. Herein, we have found a strong correlation between critical current density (J (c) ) and the n-value extracted from the electric field versus current density characteristic. The power-law relationship (m) between the J (c) and the n-value, , represents a critical index which is strongly dependent on operating temperatures.
引用
收藏
页码：1643 / 1645
页数：3
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