Title :
Multifilamentary composite MgB2 wires: preparation and testing
Author :
Akimov, Igor I. ; Gusakov, Dmitriy B. ; Medvedev, Michael I. ; Pantsyrny, Victor I. ; Shikov, Alexander K. ; Vorobieva, Alexandra E.
Author_Institution :
All-Russia Sci. Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
6/1/2004 12:00:00 AM
Abstract :
Different constructions of magnesium diboride composites superconductors are presented. Magnesium powder prepared by the melt pulverization and boron powder as well have been used as initial materials in frames of "powder-in-tube" method to producing of various conductors design. Mono-filamentary and multifilamentary wires (1.0-2.0 mm in outer diameter and up to 100 m in length) in different metallic sheathes (Fe, Ni, Fe-Cu, stainless steel) were made by extrusion and drawing. The results of metallography investigations and transport measurements for the conductors and as well as for dummy coil are described.
Keywords :
boron alloys; coils; critical current density (superconductivity); extrusion; magnesium alloys; multifilamentary superconductors; type II superconductors; MgB2; MgB2 wires; boron powder; dummy coil; extrusion; magnesium diboride composites; magnesium powder; melt pulverization; metallic sheathes; metallography; mono-filamentary wires; multifilamentary composite wires; multifilamentary wires; powder-in-tube method; superconductivity; superconductors; transport measurement; transport properties; Boron; Conducting materials; Conductors; Iron; Magnesium compounds; Multifilamentary superconductors; Powders; Steel; Superconducting materials; Wires; Composite wires; magnesium diboride; superconductivity; transport properties;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.830387
