PROCESSING AND SUPERCONDUCTING PROPERTIES OF HIGH-JC BULK YBACUO PREPARED BY MELT PROCESS

被引：59
|
作者：
MORITA, M
MIYAMOTO, K
DOI, K
MURAKAMI, M
SAWANO, K
MATSUDA, S
机构：
[1] INT SUPERCONDUCT TECHNOL CTR,KOTO KU,TOKYO 135,JAPAN
[2] NAGOYA INST TECHNOL,GOKISO SYOUWA KU,NAGOYA,AICHI 466,JAPAN
来源：
PHYSICA C | 1990年 / 172卷 / 3-4期
关键词：
D O I：
10.1016/0921-4534(90)90632-O
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The authors tried to produce high critical current density (J(c)) bulk superconducting material by a melt process. It became clear that the grain boundary region acts as a weak-link and causes the low J(c) of the sintered material. It was found that highly oriented bulk material can be produced by a melt process in Y-Ba-Cu-O system. The authors obtained samples which contained many fine Y2BaCuO5 (211) phases and no grain boundary throughout a region of several tens of cubic millimeters. By magnetization measurements, it was found that J(c) exceeded 10(4) A/cm2 at 77 K and 1 T, which is a promising value for practical applications.
引用
收藏
页码：383 / 387
页数：5
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