E2M - 전기 전자와 첨단 소재 (Electrical & Electronic Materials)
- 제10권4호
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- Pages.320-326
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- 1997
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- 2982-6268(pISSN)
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- 2982-6306(eISSN)
저온냉동기로 냉각된 Bi 계 초전도선재의 안정성 연구
A study on the Stability of Bi-based Superconducting Wires cooled by a Cryocooler
초록
The stability of Bi-based superconducting wires cooled by a cryocooler was studied by considering the temperature dependency of critical current and electrical resistivity. The critical current measured in 23 K was about 7 times higher than that measured in liquid nitrogen of 77 K. The stability behavior of Bi based multifilament wires subjected to a thermal disturbance, which was simulated with a electric heater, was investigated by measuring the variation of voltage drop with time. Current sharing was occurred, and recovery to superconductivity was measured in the wire after removing heater power.
키워드