Title :
Metallurgy and superconductivity in bronze-processed Nb3Sn doped cerium and cerium-titanium
Author :
Chunfang, Liu ; Lian, Zhou ; Zhaoling, Yang
Author_Institution :
Baoji Inst. for Non-ferrous Metal Res., Shaanxi, China
fDate :
3/1/1989 12:00:00 AM
Abstract :
Metallurgy and superconductivity in Ce-doped and Ce-Ti-doped Nb 3Sn samples were investigated. The wires containing Ce-bronze and Ce-Te-bronze were not noticeably difficult to draw. The addition of Ce to the bronze not only enhances the growth rate of the Nb3Sn layer but also improves the composition distribution within the wire. The critical temperature Tc of Ce-doped samples treated at 700°C is obviously higher than that of pure Nb3Sn. The Jc difference between samples with small amounts of Ce and pure Nb3Sn is not obvious. Jc decreases slightly in low field with increasing Ce content
Keywords :
cerium; critical current density (superconductivity); materials preparation; niobium alloys; superconducting transition temperature; tin alloys; titanium; type II superconductors; Nb3Sn:Ce, Ti; bronze-processed; composition; critical current density; critical temperature; growth rate; metallurgy; superconductivity; wires; Annealing; Argon; Cerium; Critical current; Magnetic field measurement; Niobium; Superconductivity; Temperature; Tin; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
