Changes in the Thermal Stability of 2G HTS Wires by Local Modification of the Stabilization Layer

被引：4

作者：

Angurel, Luis A. ^{[1
]}

Martinez, Elena ^{[1
]}

Pelegrin, Jorge ^{[1
]}

Lahoz, Ruth ^{[1
]}

de la Fuente, German F. ^{[1
]}

Andres, Nieves ^{[2
]}

Pilar Arroyo, M. ^{[2
]}

Xie, Yi-Yuan ^{[3
]}

Selvamanickam, Venkat ^{[3
,4
]}

机构：

[1] Univ Zaragoza, Inst Ciencia Mat Aragon, CSIC, Zaragoza 50018, Spain

[2] Univ Zaragoza, Inst Invest Ingn Aragon, E-50009 Zaragoza, Spain

[3] SuperPower Inc, Schenectady, NY 12304 USA

[4] Univ Houston, Houston, TX 77004 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

关键词：

Coated conductors; laser ablation; thermal stability;

D O I：

10.1109/TASC.2010.2100070

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In order to use 2G HTS wires in superconducting devices, it is important to understand the origin of thermal instabilities in these materials. Previous results showed that inhomogeneities in the critical current distribution are not the only factor that determines the heat generation distribution along the sample when the current exceeds the critical value. In this work, different types of controlled defects have been generated in the Cu-layer using laser ablation. In all cases, laser parameters have been chosen while assuring that the critical current of the superconductor does not deteriorate. It has been obtained that even if the thickness of the stabilizing layer is reduced from 20 mu m to less than 10 mu m in some regions, the sample response to overcurrents is not modified.

引用

页码：3017 / 3020

页数：4

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