Flux pinning at grain boundaries in liquid phase sintered YBCO

被引：2
|
作者：
Yamada, Y [1 ]
Kuwahara, T [1 ]
Donishi, T [1 ]
Kubo, S [1 ]
机构：
[1] Shimane Univ, Matsue, Shimane 6908504, Japan
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期
关键词：
high-temperature superconductors; superconducting composites; superconducting magnets; superconducting materials;
D O I：
10.1109/TASC.2005.848976
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：
Flux pinning behavior in liquid phase sintered YBa2Cu3O7-delta (YBCO) has been investigated in terms of preparation processing and pinning behavior. Liquid phase sintering method, which composed of two processes, mixing of YBCO precursor and liquid phase component and sintering at temperatures above the melting point of the liquid phase component, showed obvious Jc increase at high magnetic fields. Structure of the samples showing the increase of Jc by the liquid phase sintering is quite different from that showing no Jc increase. Structural dependence suggests that this pinning effect possibly originates from grain boundaries and oxygen deficiencies in the samples.
引用
收藏
页码：3122 / 3124
页数：3
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