한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2000년도 추계학술대회 논문집
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- Pages.488-491
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- 2000
Bi-2223/Ag 고온 초전도 선재의 임계전류 및 소세징에 미치는 인발 조건의 영향
The Influence of Drawing Parameters on Sausaging and Critical Current of Bi-2223/Ag HTS Wires.
초록
Bi-2223/Ag superconducting wires have been mainly prepared by a powder-in-tube method. The drawing and the rolling are main processes to increase the core density and wire length. In the fabrication of long wire, especially, the drawing should be precisely controlled to assure the filament homogeneity. In this paper, the influences of drawing die angle, bearing length and reduction ratio on the sausaging and the critical current density of the wire are investigated. Single cored and multi-filamentary wires are fabricated by PIT method with different conditions. The core densities and sausaging in the wires are investigated and are discussed regarding their relationship to the I