Inductive analysis of magnetic granularity effects in YBCOIBAD and RABiTS coated conductors

被引：7
|
作者：
Palau, A [1 ]
Puig, T
Obradors, X
Usoskin, A
Freyhardt, HC
Fernández, L
Holzapfel, B
机构：
[1] CSIC, Inst Ciencia Mat, Bellaterra 08193, Spain
[2] Zentrum Funkt Wekstoffe, D-37073 Gottingen, Germany
[3] IFW Dresden, D-01069 Dresden, Germany
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2003年 / 13卷 / 02期
关键词：
coated conductors; critical currents; granularity effects;
D O I：
10.1109/TASC.2003.811858
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：
We present a noninvasive inductive analysis of YBb(2)Cu(3)O(7) (YBCO) IBAD (Ion Beam Assisted Deposition) and RABiTS (Rolling Assisted Biaxial Textured Substrates) coated conductors that enable us to analyze the electromagnetic granularity effects. We distinguish flux penetration through grain boundaries and grains and determine the inductive intergranular critical current density. The signature of reverse flux at low angle grain boundaries has been clearly identified by the appearance of a peak in the return branch of the irreversible magnetization. The present analysis evidence that IBAD and RABiTS coated conductors may exhibit comparable inter-grain critical current densities with the determining factor being the average in-plane grain misorientation.
引用
收藏
页码：2599 / 2602
页数：4
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