DocumentCode :
1123756
Title :
Superconducting Properties of 
Wire Using Ball-Milled Low Purity Boron
Author :
Xu, Xun ; Kim, Jung Ho ; Zhang, Yun ; Zhao, Yue ; Rindfleisch, Matthew ; Tomsic, Michael
Author_Institution :
Inst. for Supercond. & Electron. Mater., Univ. of Wollongong, Wollongong, NSW, Australia
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
2714
Lastpage :
2717
Abstract :
MgB2/Fe wire samples were prepared by using ball-milled 96% boron (B) powder with strong semi-crystalline phase. We observed samples that contained ball-milled 96% B in comparison with one made from as-supplied commercial 96% B, with the results showing a significant enhancement in the high field transport critical current density (J ct) due to small grain size and better reactivity. However, the inter-grain connectivity became worse, which could lead to poor J ct in low field and an increased level of disorder.
Keywords :
ball milling; critical current density (superconductivity); grain size; iron; magnesium compounds; powders; superconducting materials; MgB2-Fe; ball-milling; grain size; high field transport critical current density; intergrain connectivity; low purity boron powder; material preparation; superconducting properties; superconducting wire; ${rm MgB}_{2}$ wire; Ball milling; magnetic critical current density; oxygen;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2018857
Filename :
5153198
Link To Document :
