DocumentCode :
4699
Title :
Study on 
Superconducting Coil With Ceramic Former
Author :
Junsheng Cheng ; Lankai Li ; Yuanzhong Lei ; Chunyan Cui ; Zhipeng Ni ; Xinning Hu ; Qiuliang Wang
Author_Institution :
Inst. of Electr. Eng., Beijing, China
Volume :
24
Issue :
3
fYear :
2014
fDate :
Jun-14
Firstpage :
1
Lastpage :
4
Abstract :
The Al2O3 machinable ceramic material, which has excellent insulation property and good thermal conductivity at low temperature, was used to make a coil former of a Nb3Sn superconducting coil. Multifilament Nb3Sn superconducting wire was wound on the ceramic former to form a Nb3Sn superconducting coil. Afterwards, the coil was heat treated in vacuum, impregnated, and solidified. Finally, the coil was placed into a special cryostat to exam the critical current of the coil. The test results show that the operation current of the coil is no less than 500 A under 4 T background field. The coil can be charged at ramp rate of 10 A/s without quenching.
Keywords :
aluminium compounds; ceramics; critical currents; cryostats; heat treatment; niobium alloys; solidification; superconducting coils; tin alloys; type II superconductors; Nb3Sn-Al2O3; ceramic former; critical current; cryostat; current 500 A; heat treatment; impregnation; insulation property; machinable ceramic material; magnetic flux density 4 T; multifilament superconducting wire; ramp rate; solidification; superconducting coil; thermal conductivity; Ceramics; Niobium-tin; Superconducting coils; Superconducting magnets; Wires; $hbox{Al}_{2}hbox{O}_{3}$ $hbox{Nb}_{3}hbox{Sn}$
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2013.2292324
Filename :
6677614
Link To Document :
