한국초전도저온공학회:학술대회논문집 (Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference)
- 한국초전도저온공학회 2003년도 학술대회 논문집
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- Pages.126-128
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- 2003
Twisting된 Bi-2223 선재의 미세조직 관찰 및 교류손실 특성평가
The effect of twisting on microstructure and AC losses of Bi-2223 superconductor tapes
초록
The effect of twisting on the microstructure and AC losses of Bi-2223 superconductor tape has been evaluated. Twisting pitches of the tapes are in the range of 12~60 mm and uniformly deformed. The critical current of the tapes was measured to decreased with decreased pitch. This reduction is believed to be due to the irregular interface, poor grain alignment. In addition, AC losses of the tape reduced as the pitch decreased probably due to combined effects of lower critical current and electrically decoupled filament of twisted tape.
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