Status of Bi-2223 tapes performance and development

被引：25

作者：

Kaneko, T ^{[1
]}

Hikata, T ^{[1
]}

Ueyama, M ^{[1
]}

Mikumo, A ^{[1
]}

Ayai, N ^{[1
]}

Kobayashi, S ^{[1
]}

Saga, N ^{[1
]}

Hayashi, K ^{[1
]}

Ohmatsu, K ^{[1
]}

Sato, K ^{[1
]}

机构：

[1] Sumitomo Elect Ind Ltd, Osaka, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.784977

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 are developing Bi-2223 superconducting tapes on wide view point from fundamental superconducting property to application usage. In basic characterization of superconductivity, a behavior of critical current density (JE) in terms Of both temperature and magnetic field was studied in detail and, a new scaling law which can estimate the value of Jc on multiple conditions is defined. There were significant improvements in long length fabricating process. The 1 km order length tape having J(c) at 77 K over 20kA/cm(2) can be produced reproducibly. The distribution of J(c) through whole length is very uniform. These results in both basic characterization and production progress made it possible and easy to design a high field magnet. Then, we have successfully developed a magnet using refrigerator.

引用

页码：2465 / 2468

页数：4