DocumentCode
26224
Title
Effect of Ball Milling and Fatty Acid Addition on the Properties of 
Wires
Author
Laliena, C. ; Martinez, E. ; Angurel, L.A. ; Navarro, Rafael
Author_Institution
Dept. de Cienc. y Tecnol. de Mater. y Fluidos, Univ. de Zaragoza, Zaragoza, Spain
Volume
25
Issue
3
fYear
2015
fDate
Jun-15
Firstpage
1
Lastpage
4
Abstract
Improved inductive critical current density Jc, at medium and high magnetic fields B, has been obtained in MgB2 wires made from ball-milled and carbon-doped precursors. The analyzed Fe-sheathed monofilamentary wires have been manufactured by the powder-in-tube and in-situ methods. Carbon doping has been achieved by the addition of fatty acids, in particular oleic acid (C18H34O2). In order to enhance the Jc(B) performance and the homogeneity of the wires, we have analyzed the combined effects of ball milling and oleic acid addition. The changes in the microstructure, phase composition, and superconducting properties for different milling parameters and the fixed amount of acid addition have been analyzed.
Keywords
ball milling; carbon; critical current density (superconductivity); doping; magnesium compounds; superconducting materials; wires; MgB2:C; ball milling; carbon doping; fatty acid addition; in situ method; inductive critical current density; magnesium diboride wires; magnetic field; monofilamentary wires; oleic acid; powder-in-tube method; Ball milling; Critical current density (superconductivity); Doping; Magnetic fields; Milling; Powders; Wires; $hbox{MgB}_{2}$; Ball milling; MgB2; ball milling; critical currents; doping; superconducting wires;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2014.2364158
Filename
6945820
Link To Document