Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.10a
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- Pages.273-276
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- 2003
Study for multi-filament drawing of Bi2223 high-temperature superconductivity wire by FE method
유한요소법에 의한 Bi2223 고온 초전도 선재의 다심 인발에 대한 연구
Abstract
High-temperature superconduction materials(Bi2223) possess electrical/electronic and magnetic properties. Because high-temperature superconduction materials is a ceramic powder, that can not be produced singlehandedly. So Ag sheathed Bi-2223 wire was produced by drawing process using powder-in-tube(PIT) method. This superconductor has many difficulties to produce. The main difficulty is that the mechanical properties of the ceramic powder are very different from those of the Ag sheath. Bi2223 high-temperature superconductivity have a single filament drawing process, and multi-filament drawing process. This study analysed multi-filament drawing process by FEM, a defects during multi-filament drawing was studied by FEM.
Keywords
- Bi2223 high-temperature superconductivity;
- multi-filament drawing;
- FEM;
- drawing process;
- PIT Drawing defect;
- damage value