Enhancement of mechanical strength in Y-Ba-Cu-O bulk superconductor through liquid binder addition

被引：2
|
作者：
Ikeda, Y. [1 ]
Umakoshi, S. [1 ]
Wongsatanawarid, A. [2 ]
Seki, H. [1 ]
Murakami, M. [1 ]
机构：
[1] Shibaura Inst Technol, Superconducting Mat Lab, Koto Ku, Tokyo 1358548, Japan
[2] King Mongkuts Univ Technol Thonburi, Dept Mech Engn, Bangkok 10140, Thailand
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2011年 / 471卷 / 21-22期
关键词：
Bulk Y-Ba-Cu-O; Melt process; Liquid binder; Mechanical properties;
D O I：
10.1016/j.physc.2011.05.071
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the effects of the liquid binder (polyvinyl alcohol) addition (0-10 wt) on the mechanical properties of the green compacts and also on the superconducting properties of bulk Y-Ba-Cu-O superconductors of 20 mm diameter produced with the top-seeded melt growth (TSMG) process. The mechanical properties of the green compacts with binder addition were characterized with the compression tests, which revealed that mechanical strength increased dramatically with increasing the amount of the binder addition. The binder-added green compacts were then subjected to the TSMG process and oxygen annealing. The trapped field measurements showed that we could produce single-grain bulk Y-Ba-Cu-O samples with binder additions up to 8 wt% without any deterioration in the superconducting properties. (C) 2011 Published by Elsevier B.V.
引用
收藏
页码：846 / 849
页数：4
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