抄録
Intermediate pressing techniques in the OPIT fabrication of high temperature superconducting Bi-2223 tapes have evolved from plane strain pressing into more continuous methods such as rolling, continuous pressing and eccentric rolling. In this study one of the most promising methods have been investigated, and novel techniques to characterize the tape quality have been taken into use: magneto optical imaging was used to detect the current paths inside the superconducting tape and to reveal differences between tapes that were intermediately pressed differently. The filaments in the tapes were extracted and shattered by ultrasonic vibration in order to check the size distribution. Bending tests were performed to show differences in current carrying capability as a function of an applied external load. It is shown how the pressing load greatly influences the current carrying capability of the finished high temperature superconducting tapes. By selecting the right pressing method it is possible to optimise the Icand Jevalues.
本文言語 | English |
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ページ(範囲) | 3740-3743 |
ページ数 | 4 |
ジャーナル | IEEE Transactions on Applied Superconductivity |
巻 | 11 |
号 | 1 |
DOI | |
出版ステータス | Published - 2001 1月 1 |
外部発表 | はい |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学
- 電子工学および電気工学