한국초전도학회:학술대회논문집
- 한국초전도학회 2000년도 High Temperature Superconductivity Vol.X
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- Pages.298-303
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- 2000
Development and properties of jointed Bi-2223 superconductor tape
- Kim, Jung-Ho (School of Metallurgical and Materials Science Engeering) ;
- Ji, Bong-Ki (School of Metallurgical and Materials Science Engeering) ;
- Park, Hyung-Sang (School of Metallurgical and Materials Science Engeering) ;
- Kim, Ho-Jin (School of Metallurgical and Materials Science Engeering) ;
- Oh, Seung-Jin (School of Metallurgical and Materials Science Engeering) ;
- Kim, Joong-Seok (School of Metallurgical and Materials Science Engeering) ;
- Joo, Jin-Ho (School of Metallurgical and Materials Science Engeering) ;
- Nah, Won-Soo (School of Electrical and Computer Engeering)
- 발행 : 2000.08.16
초록
We evaluated the electric properties of Bi-2223 jointed tapes processed by both resistive- and supercondcuting-joint methods. For the resistive-joint, filler materials of wood metal, Pb/Sn, In, and silver paste were used, whereas, for the superconductive-joint, the lap joint method were used. In the resistive-joint tape, it was observed that the electrical properties such as current transport property, n-value, and contact resistance of the tape were significantly related to the resistivity of filler materials. On the other hand, in the superconducting-joint tape, the current transport property was dependent on the uniaxial pressure. Specifically, the current transport property varied 50 to 80% with uniaxial pressure, probably due to the irregular microstructure in the transition region.
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