Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2004.11a
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- Pages.69-72
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- 2004
Fabrication of long length Bi-2223/Ag HTS tape
Bi-2223/Ag 고온초전도 장선재의 제조
- Kim, Sang-Cheol (Nexans Korea Ltd.) ;
- Lee, Dong-Hoon (Korea Electrotechnoiogy Research Institute) ;
- Ha, Dong-Woo (Korea Electrotechnoiogy Research Institute) ;
- Oh, Sang-Soo (Korea Electrotechnoiogy Research Institute)
- Published : 2004.11.11
Abstract
In order to use HTS tape on electric power applications, such as cable, motor, transformer, fault current limiter, a long length of HTS tape with a good uniformity of critical current is inevitable. The longer length of HTS tape, the wider in the range of application and the lower cost of HTS tape. In this study three long length Bi-2223/Ag tapes(268m, 253m and 187m) were fabricated. Critical current uniformity along the length was greatly improved through the optimization of cold deformation and thermo-mechanical process. Average critical current of the tapes was 63.2 A, 54.6 A and 64.2 A, respectively Critical tensile strength and critical bending radius (77 K, 5 % Ic degradation) was 135 MPa and 56 m, respectively.