Patent ID: 6845254
Filing Date: 2005-01-18
Classification: H01L,Y10T

Abstract:
1. An Nb 3 Ga multifilamentary superconducting wire having a multifilamentary structure in which multiple composite cores in which a composite compound containing Nb 3 Ga having a stoichiometric composition is embedded in Nb are embedded in Nb, Ta, Nb-base alloy or Ta-base alloy as a matrix material, wherein Nb 3 Ga in the composite cores is produced as an A15 compound by rapid heating to a temperature range of 1400 to 2100° C. in 2 seconds or shorter and quenching at a rate of 5000° C./second or larger, and has a crystal order degree improved by additional heat treatment at a temperature of 600 to 850° C.