Trapped magnetic field of Gd-Ba-Cu-O/Ag bulk fabricated in air

被引：7
作者：
Nariki, S
Hinai, H
Sakai, N
Murakami, M
Otsuka, M
机构：
[1] ISTEC, Superconduct Res Lab, Minato Ku, Tokyo 1050023, Japan
[2] Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 378卷
关键词：
melt processing; trapped magnetic field; critical current density; Gd-Ba-Cu-O;
D O I：
10.1016/S0921-4534(02)01539-3
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Single domain Gd-Ba-Cu-O bulk samples 25 mm in size were melt textured in air, and their superconducting and field-trapping properties were studied. The J(c) and field-trapping properties were improved by employing the Ba-rich GdBa2Cu3Oy composition and the fine Gd2BaCuO5 starting powder. Furthermore, the addition of Ag was effective to enhance the trapped magnetic field, since the perfect symmetric distribution was obtained without a weak link. The maximum value of the trapped field of the Ag-added bulk was 1.2 T at 77 K. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：764 / 768
页数：5
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