DocumentCode :
1059882
Title :
Co-Doping Effect of Nanoscale C and SiC on 
Superconductor
Author :
Zhang, Xianping ; Ma, Yanwei ; Wang, Dongliang ; Gao, Zhaoshun ; Wang, Lei ; Qi, Yanpeng ; Awaji, Satoshi ; Watanabe, Kazuo ; Zheng, Dongning
Author_Institution :
Appl. Supercond. Lab., Chinese Acad. of Sci., Beijing, China
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
2694
Lastpage :
2697
Abstract :
MgB2 was thought as a promising superconductor used at temperatures around 20 K for cryogen-free magnet. Nanostructure materials were often selected as MgB2 additives due to their high chemical reactivity. In this paper, the mixture of nano-C and nano-SiC was doped to MgB2 bulks and tapes. The co-doping effect of C and SiC on the phase formation, microstructure, and critical current density of MgB2 bulks and tapes were systematically investigated. The mechanisms for the superconducting properties improvement in co-doped MgB2 superconductor was analyzed based on the characterization and measuring results.
Keywords :
carbon; critical current density (superconductivity); doping; magnesium compounds; nanostructured materials; silicon compounds; superconducting tapes; MgB2:C,SiC; chemical reactivity; codoping effect; critical current density; cryogen-free magnet; microstructure; nanostructure materials; phase formation; superconducting properties; tapes; ${hbox {MgB}}_{2}$
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2018027
Filename :
5067116
Link To Document :
