한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2003년도 춘계학술대회 논문집 초전도 자성체 연구회
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- Pages.69-72
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- 2003
조성이 다른 전구체 분말에 따른 Bi-2223/Ag 초전도 테이프의 특성 변화
Properties of Bi-2223/Ag HTS tapes using different content of precursors
-
하동우
(한국전기연구원 초전도응용연구그룹)
;
- 양주생 (한국전기연구원 초전도응용연구그룹) ;
-
하홍수
(한국전기연구원 초전도응용연구그룹)
;
-
오상수
(한국전기연구원 초전도응용연구그룹)
;
- 황선역 (한국전기연구원 초전도응용연구그룹) ;
-
이동훈
(한국전기연구원 초전도응용연구그룹)
;
- 최정규 (한국전기연구원 초전도응용연구그룹) ;
- 이언용 (한국전기연구원 초전도응용연구그룹) ;
-
권영길
(한국전기연구원 초전도응용연구그룹)
-
Ha, Dong-Woo
;
- Yang, Joo-Saeng ;
-
Ha, Hong-Soo
;
-
Oh, Sang-Soo
;
- Hwang, Sun-Yuk ;
-
Lee, Dong-Hoon
;
- Choi, Jung-Kyu ;
- Lee, En-Yong ;
-
Kwon, Young-Kil
- 발행 : 2003.05.23
초록
Bi-2223 superconducting wires were fabricated by stacking, drawing process with different precursor powders and different heat-treatment histories. The precursor powders were 2 kinds of Pb content. And a part of the tapes were experienced pre-annealing process which caused tetragonal structure of Bi-2212 phase to orthorhombic structure of it was during drawing process. We confirmed the transformation of Bi-2212 phase from tetragonal structure to orthorhombic structure and reduction of second phases. XRD and DC magnetization analysis were performed in order to investigate the fraction of Bi-2223 phase in Bi-2223/Ag HTS tape. We could achieve best Ic of 70 A class at the Bi-2223/Ag tape using low Pb content of precursor powder and experienced pre-annealing process. DC magnetization analysis was useful to investigate the fraction of Bi-2223 phase in the Bi-2223/Ag tape.