- 후열처리 과정에서 냉각조건에 따른 Bi계 초전도선재의 임계특
- ㆍ 저자명
- 김민기,최효상,정동철,최명호,한병성
- ㆍ 간행물명
- 電氣學會論文誌
- ㆍ 권/호정보
- 1994년|43권 6호|pp.958-964 (7 pages)
- ㆍ 발행정보
- 대한전기학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
To study on the superconducting properties with cooling conditions, silver-sheathed Bi-Pb-Sr-Ca-Cu-O wires fabricated by the powder-in-tube method. The wires cooled down in the furnace, air and liquid NS12T after sintering at 840$^{circ}C$ Critical current density of sample cooled in the furnace is 5.1${ imes}$10S03TA/cmS02T and sample cooled in the air is 40A/cmS02T at 77K, zero magnetic field. The latter is very low critical current density of Bi system. 2223 high-Tc superconducting phase of sample cooled in the air was distroyed. Properties of sample cooled down in the liquid nitrogen is the same as cooled in the furnace.