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고온초전도 BSCCO 2223 선재간의 초전도 접합부 제조연구
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  • 고온초전도 BSCCO 2223 선재간의 초전도 접합부 제조연구
저자명
유재무,고재웅,정형식,Yu. Jae-Mu,Go. Jae-Ung,Jeong. Hyeong-Sik
간행물명
硏究論文集 : 한국기계연구원
권/호정보
1997년|27권 8호|pp.175-181 (7 pages)
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한국기계연구원
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Superconducting joints between Bi-2223/Ag tapes are fabricated by a press & reaction anneal and a multiple press & anneal. The silver sheath was mechanically or chemically removed from one side of each tape without altering the superconducting core. The exposed superconducting core of the two tapes were brought into contact and pressed so as to form a lap joint. The joined tapes were then subjected to a series of different thermomechanical treatments to achieve optimum heat treatment condition. The result from transport measurements shows that critical current ($I_c$) transmitting through joined area reaches 9A, approximately 60% of the current capacity of the tapes themselves. The critical current through joined area was improved by repeated press and reaction annealing. Measurements of the current-voltage relationship were made with several configuration of the voltage probes to characterize the critical current variation and I-V curve along the joint. Also discussed are microstructural aspects of the superconducting joint.