Bending strain characteristics of critical current in double-layered Bi-2223 superconducting tapes

被引：6

作者：

Shin, Hyung-Seop ^{[1
]}

Dizon, John R. C. ^{[2
]}

Bonifacio, Rolly ^{[2
]}

Park, Sung-Taek ^{[2
]}

Ha, Dong-Woo ^{[3
]}

Oh, Sang-Soo ^{[3
]}

机构：

[1] Andong Natl Univ, Sch Mech Engn, Andong 760749, Kyungbuk, South Korea

[2] Andong Natl Univ, Grad Sch, Dept Mech Engn, Andong 760749, Kyungbuk, South Korea

[3] Korea Electrotechnol Res Inst, Appl Superconductiv Res Grp, Chang Won 641120, Kyungnam, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2008年 / 18卷 / 02期

关键词：

bending strain; Bi-2223; tapes; critical current; double-layered; pressurized LN2; thermal cycle;

D O I：

10.1109/TASC.2008.921276

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：

The evaluation of reliability of HTS tapes is necessary for practical applications such as magnet, power cables, motors, SMES and HTS coils. The bending strain effect on the critical current, I-c, in multifilamentary Bi-2223 HTS tapes have been investigated. Single and double layered tapes (for high current capacity) were subjected to thermal and pressurization cycles at pressurized liquid nitrogen (LN2) up to 1 MPa. After the pressurization test, the subsequent occurrence of damage like ballooning due to the diffusion and expansion of LN2 into the tapes were investigated and compared. The Bi-2223 tapes showed different I-c degradation behavior depending upon the geometry and ratio of reinforcement to superconductor adopted.

引用

页码：1155 / 1158

页数：4

共 12 条

[1] EFFECT OF AXIAL STRAIN ON THE CRITICAL CURRENT OF AG-SHEATHED BIBASED SUPERCONDUCTORS IN MAGNETIC-FIELDS UP TO 25-T [J].