DocumentCode :
1075838
Title :
Magnetic Field Enhanced Texture of Low Aspect Ratio Bi2Sr2CaCu2O8+x/
Author :
Ramos, M.A. ; Liu, X.T. ; Shen, T.M. ; Trociewitz, U.P. ; Schwartz, J.
Author_Institution :
Nat. High Magnetic Field Lab., Tallahassee
Volume :
17
Issue :
2
fYear :
2007
fDate :
6/1/2007 12:00:00 AM
Firstpage :
3103
Lastpage :
3105
Abstract :
It has been shown previously that texture can be achieved in Bi2Sr2CaCu2Ox (Bi2212) bulk and tape conductors by applying a background magnetic field during the partial-melt stage. In this paper, we report on the texturing of low aspect ratio multifilamentary Bi2212/AgMg wires that were partial melt processed in a 12 T background magnetic field. To determine the effects of the applied magnetic field on the transport properties, the critical current was measured using the four point method. Transport measurements were carried out in magnetic fields up to 5 T with varying magnetic field angle. It was found that some texture is induced, resulting in electrical properties that vary with magnetic field orientation.
Keywords :
bismuth compounds; calcium compounds; composite superconductors; critical currents; high-temperature superconductors; magnesium alloys; multifilamentary superconductors; silver alloys; strontium compounds; superconducting tapes; texture; Bi2Sr2CaCu2O-AgMg; aspect ratio; background magnetic field; critical current; electrical transport; magnetic flux density 12 T; multifilamentary wires; partial melt processing; superconducting wires; tape conductors; texture; Bismuth; Critical current; Current measurement; Electric variables measurement; Heat treatment; Magnetic field measurement; Magnetic fields; Microstructure; Superconducting magnets; Wires; Bi2212/AgMg; critical current; texture;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2007.898876
Filename :
4278251
Link To Document :
